diff --git a/SharedProject/Models/SongInfo.cs b/SharedProject/Models/SongInfo.cs
index a3d64bb..b85e411 100644
--- a/SharedProject/Models/SongInfo.cs
+++ b/SharedProject/Models/SongInfo.cs
@@ -8,4 +8,6 @@ public class SongInfo
 
     public Difficulty Difficulty { get; set; } = new();
 
+    public int Level { get; set; } = 0;
+
 }
diff --git a/TaikoWebUI/Components/ChallengeCompe.razor b/TaikoWebUI/Components/ChallengeCompe.razor
index f9cba13..4781731 100644
--- a/TaikoWebUI/Components/ChallengeCompe.razor
+++ b/TaikoWebUI/Components/ChallengeCompe.razor
@@ -8,14 +8,17 @@
             <CardHeaderContent>
                 @if (ChallengeCompetition.CompeteMode == CompeteModeType.Chanllenge)
                 {
-                    @if (ChallengeCompetition?.Baid != Baid)
+                    if (Baid == 0)
                     {
-                        <MudText Typo="Typo.h6" Style="font-weight:bold;word-break:break-all">@Localizer["From"] @ChallengeCompetition?.Holder?.MyDonName</MudText>
+                        <MudText Typo="Typo.h6" Style="font-weight:bold;word-break:break-all">@formatChallengeTitle(Localizer["FullChallengeTitle"])</MudText>
+                    }
+                    else if (ChallengeCompetition?.Baid != Baid)
+                    {
+                        <MudText Typo="Typo.h6" Style="font-weight:bold;word-break:break-all">@formatChallengeTitle(Localizer["ReceiverChallengeTitle"])</MudText>
                     }
                     else
                     {
-                        var participant = ChallengeCompetition?.Participants?.Find(p => p.Baid != Baid);
-                        <MudText Typo="Typo.h6" Style="font-weight:bold;word-break:break-all">@Localizer["To"] @participant?.UserInfo?.MyDonName</MudText>
+                        <MudText Typo="Typo.h6" Style="font-weight:bold;word-break:break-all">@formatChallengeTitle(Localizer["CreatorChallengeTitle"])</MudText>
                     }
                 }
                 else
@@ -86,13 +89,16 @@
                         {
                             if (ChallengeCompetition.MaxParticipant <= ChallengeCompetition.Participants.Count)
                             {
-                                <MudText Typo="Typo.body1" Style="padding: 6px 8px 6px 8px;" Color="Color.Warning">@Localizer["Fullfilled"]</MudText>
+                                <MudText Typo="Typo.body1" Style="padding: 6px 8px 6px 8px;" Color="Color.Warning">@Localizer["Fulfilled"]</MudText>
                             }
                             else
                             {
                                 <MudButton OnClick="AnswerCompete" Color="Color.Success" Variant="Variant.Filled">@Localizer["Participate"]</MudButton>
                             }
                         }
+                    } else
+                    {
+                        <MudText Typo="Typo.body1" Style="padding: 6px 8px 6px 8px;" Color="@((ChallengeCompetition.Participants.Count < ChallengeCompetition.MaxParticipant) ? Color.Primary : Color.Warning)">@ChallengeCompetition.Participants.Count / @ChallengeCompetition.MaxParticipant</MudText>
                     }
                 }
             </MudStack>
@@ -125,6 +131,13 @@
         return ChallengeCompetition?.CreateTime < DateTime.Now && DateTime.Now < ChallengeCompetition?.ExpireTime && !ParticipatedChallengeCompetition();
     }
 
+    private string formatChallengeTitle(string template)
+    {
+        return template
+            .Replace("{From}", ChallengeCompetition?.Holder?.MyDonName)
+            .Replace("{To}", ChallengeCompetition?.Participants?.Find(p => p.Baid != ChallengeCompetition?.Baid)?.UserInfo?.MyDonName);
+    }
+
     private async Task AnswerChallenge(bool accept)
     {
         if (ChallengeCompetition == null || ChallengeCompetition.State != CompeteState.Waiting) return;
diff --git a/TaikoWebUI/Components/ChallengeCompeteGrid.razor b/TaikoWebUI/Components/ChallengeCompeteGrid.razor
index 8bcca74..960232a 100644
--- a/TaikoWebUI/Components/ChallengeCompeteGrid.razor
+++ b/TaikoWebUI/Components/ChallengeCompeteGrid.razor
@@ -33,7 +33,7 @@
                     }
                     else if (Mode == 3 && Baid == 0)
                     {
-                        <MudButton Variant="Variant.Filled" Size="Size.Large" StartIcon="@Icons.Material.Filled.Add" Color="Color.Tertiary" OnClick=@(_ => OpenDialogAsync(3, 3)) Style="width: 80px">@Localizer["Add"]</MudButton>
+                        <MudButton Variant="Variant.Filled" Size="Size.Large" StartIcon="@Icons.Material.Filled.Add" Color="Color.Tertiary" OnClick=@(_ => OpenDialogAsync(3, 5, 365, 100)) Style="width: 80px">@Localizer["Add"]</MudButton>
                     }
                 </MudStack>
             </div>
@@ -191,12 +191,14 @@
         await Debounce(GetUsersData, 500); // 500 milliseconds delay
     }
 
-    private async Task OpenDialogAsync(int mode, int maxSongs)
+    private async Task OpenDialogAsync(int mode, int maxSongs, int maxDays = 30, int maxParticipant = 20)
     {
         var options = new DialogOptions { CloseOnEscapeKey = true };
         var parameters = new DialogParameters();
         parameters.Add("Mode", mode);
         parameters.Add("MaxSongs", maxSongs);
+        parameters.Add("MaxDays", maxDays);
+        parameters.Add("MaxParticipant", maxParticipant);
         parameters.Add("Baid", Baid);
 
         var dialogRet = await DialogService.ShowAsync<AddChallengeCompetitionDialog>(Localizer["Create"], parameters, options);
diff --git a/TaikoWebUI/Components/UserCard.razor b/TaikoWebUI/Components/UserCard.razor
index e1cb7fa..308946e 100644
--- a/TaikoWebUI/Components/UserCard.razor
+++ b/TaikoWebUI/Components/UserCard.razor
@@ -39,7 +39,7 @@
                     </MudMenuItem>
                     <MudDivider />
                     <MudMenuItem Icon="@Icons.Material.Filled.FeaturedPlayList"
-                                 Href="@($"Users/{User.Baid}/AccessCode")"
+                                 Href="@($"Users/{User?.Baid}/AccessCode")"
                                  IconColor="@Color.Primary">
                         @Localizer["Access Codes"]
                     </MudMenuItem>
@@ -73,15 +73,15 @@
                         </MudMenuItem>
                         <MudDivider />
                     }
-                    <MudNavLink Href="@($"ChallengeCompe/{User.Baid}/Challenge")" Match="NavLinkMatch.All" Icon="@Icons.Material.Filled.People" IconColor="Color.Warning">
+                    <MudNavLink Href="@($"ChallengeCompe/{User?.Baid}/Challenge")" Match="NavLinkMatch.All" Icon="@Icons.Material.Filled.People" IconColor="Color.Warning">
                         <span style="padding-left: 20px;">@Localizer["Challenge"]</span>
                     </MudNavLink>
                     <MudDivider />
-                    <MudNavLink Href="@($"ChallengeCompe/{User.Baid}/Competition")" Match="NavLinkMatch.All" Icon="@Icons.Material.Filled.WorkspacePremium" IconColor="Color.Warning">
+                    <MudNavLink Href="@($"ChallengeCompe/{User?.Baid}/Competition")" Match="NavLinkMatch.All" Icon="@Icons.Material.Filled.WorkspacePremium" IconColor="Color.Warning">
                         <span style="padding-left: 20px;">@Localizer["Competition"]</span>
                     </MudNavLink>
                     <MudDivider />
-                    <MudNavLink Href="@($"ChallengeCompe/{User.Baid}/OfficialCompetition")" Match="NavLinkMatch.All" Icon="@Icons.Material.Filled.EmojiEvents" IconColor="Color.Warning">
+                    <MudNavLink Href="@($"ChallengeCompe/{User?.Baid}/OfficialCompetition")" Match="NavLinkMatch.All" Icon="@Icons.Material.Filled.EmojiEvents" IconColor="Color.Warning">
                         <span style="padding-left: 20px;">@Localizer["Official Competition"]</span>
                     </MudNavLink>
                     <MudDivider />
diff --git a/TaikoWebUI/Localization/LocalizationResource.Designer.cs b/TaikoWebUI/Localization/LocalizationResource.Designer.cs
index f4a5355..627a655 100644
--- a/TaikoWebUI/Localization/LocalizationResource.Designer.cs
+++ b/TaikoWebUI/Localization/LocalizationResource.Designer.cs
@@ -177,6 +177,15 @@ namespace TaikoWebUI.Localization {
             }
         }
         
+        /// <summary>
+        ///   查找类似  的本地化字符串。
+        /// </summary>
+        internal static string Accepted {
+            get {
+                return ResourceManager.GetString("Accepted", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   查找类似  的本地化字符串。
         /// </summary>
@@ -348,6 +357,15 @@ namespace TaikoWebUI.Localization {
             }
         }
         
+        /// <summary>
+        ///   查找类似  的本地化字符串。
+        /// </summary>
+        internal static string Any {
+            get {
+                return ResourceManager.GetString("Any", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   查找类似  的本地化字符串。
         /// </summary>
@@ -429,6 +447,15 @@ namespace TaikoWebUI.Localization {
             }
         }
         
+        /// <summary>
+        ///   查找类似  的本地化字符串。
+        /// </summary>
+        internal static string Challenge_Target {
+            get {
+                return ResourceManager.GetString("Challenge Target", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   查找类似  的本地化字符串。
         /// </summary>
@@ -600,6 +627,51 @@ namespace TaikoWebUI.Localization {
             }
         }
         
+        /// <summary>
+        ///   查找类似  的本地化字符串。
+        /// </summary>
+        internal static string Create {
+            get {
+                return ResourceManager.GetString("Create", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   查找类似  的本地化字符串。
+        /// </summary>
+        internal static string Create_Challenge {
+            get {
+                return ResourceManager.GetString("Create Challenge", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   查找类似  的本地化字符串。
+        /// </summary>
+        internal static string Create_Competition {
+            get {
+                return ResourceManager.GetString("Create Competition", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   查找类似  的本地化字符串。
+        /// </summary>
+        internal static string Create_Official_Competition {
+            get {
+                return ResourceManager.GetString("Create Official Competition", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   查找类似  的本地化字符串。
+        /// </summary>
+        internal static string CreatorChallengeTitle {
+            get {
+                return ResourceManager.GetString("CreatorChallengeTitle", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   查找类似  的本地化字符串。
         /// </summary>
@@ -924,6 +996,24 @@ namespace TaikoWebUI.Localization {
             }
         }
         
+        /// <summary>
+        ///   查找类似  的本地化字符串。
+        /// </summary>
+        internal static string Fulfilled {
+            get {
+                return ResourceManager.GetString("Fulfilled", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   查找类似  的本地化字符串。
+        /// </summary>
+        internal static string FullChallengeTitle {
+            get {
+                return ResourceManager.GetString("FullChallengeTitle", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   查找类似  的本地化字符串。
         /// </summary>
@@ -1131,6 +1221,15 @@ namespace TaikoWebUI.Localization {
             }
         }
         
+        /// <summary>
+        ///   查找类似  的本地化字符串。
+        /// </summary>
+        internal static string Last_For__Days_ {
+            get {
+                return ResourceManager.GetString("Last For (Days)", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   查找类似  的本地化字符串。
         /// </summary>
@@ -1257,6 +1356,15 @@ namespace TaikoWebUI.Localization {
             }
         }
         
+        /// <summary>
+        ///   查找类似  的本地化字符串。
+        /// </summary>
+        internal static string Max_Participant {
+            get {
+                return ResourceManager.GetString("Max Participant", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   查找类似  的本地化字符串。
         /// </summary>
@@ -1338,6 +1446,15 @@ namespace TaikoWebUI.Localization {
             }
         }
         
+        /// <summary>
+        ///   查找类似  的本地化字符串。
+        /// </summary>
+        internal static string No_Select {
+            get {
+                return ResourceManager.GetString("No Select", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   查找类似  的本地化字符串。
         /// </summary>
@@ -1410,6 +1527,15 @@ namespace TaikoWebUI.Localization {
             }
         }
         
+        /// <summary>
+        ///   查找类似  的本地化字符串。
+        /// </summary>
+        internal static string Off {
+            get {
+                return ResourceManager.GetString("Off", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   查找类似  的本地化字符串。
         /// </summary>
@@ -1437,6 +1563,15 @@ namespace TaikoWebUI.Localization {
             }
         }
         
+        /// <summary>
+        ///   查找类似  的本地化字符串。
+        /// </summary>
+        internal static string On {
+            get {
+                return ResourceManager.GetString("On", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   查找类似  的本地化字符串。
         /// </summary>
@@ -1446,6 +1581,15 @@ namespace TaikoWebUI.Localization {
             }
         }
         
+        /// <summary>
+        ///   查找类似  的本地化字符串。
+        /// </summary>
+        internal static string Only_Play_Once {
+            get {
+                return ResourceManager.GetString("Only Play Once", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   查找类似  的本地化字符串。
         /// </summary>
@@ -1464,6 +1608,15 @@ namespace TaikoWebUI.Localization {
             }
         }
         
+        /// <summary>
+        ///   查找类似  的本地化字符串。
+        /// </summary>
+        internal static string Participated {
+            get {
+                return ResourceManager.GetString("Participated", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   查找类似  的本地化字符串。
         /// </summary>
@@ -1599,6 +1752,15 @@ namespace TaikoWebUI.Localization {
             }
         }
         
+        /// <summary>
+        ///   查找类似  的本地化字符串。
+        /// </summary>
+        internal static string ReceiverChallengeTitle {
+            get {
+                return ResourceManager.GetString("ReceiverChallengeTitle", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   查找类似  的本地化字符串。
         /// </summary>
@@ -1689,6 +1851,15 @@ namespace TaikoWebUI.Localization {
             }
         }
         
+        /// <summary>
+        ///   查找类似  的本地化字符串。
+        /// </summary>
+        internal static string Rejected {
+            get {
+                return ResourceManager.GetString("Rejected", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   查找类似  的本地化字符串。
         /// </summary>
@@ -1842,6 +2013,24 @@ namespace TaikoWebUI.Localization {
             }
         }
         
+        /// <summary>
+        ///   查找类似  的本地化字符串。
+        /// </summary>
+        internal static string Select_Song {
+            get {
+                return ResourceManager.GetString("Select Song", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   查找类似  的本地化字符串。
+        /// </summary>
+        internal static string Select_User {
+            get {
+                return ResourceManager.GetString("Select User", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   查找类似  的本地化字符串。
         /// </summary>
@@ -1914,6 +2103,15 @@ namespace TaikoWebUI.Localization {
             }
         }
         
+        /// <summary>
+        ///   查找类似  的本地化字符串。
+        /// </summary>
+        internal static string Song {
+            get {
+                return ResourceManager.GetString("Song", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   查找类似  的本地化字符串。
         /// </summary>
diff --git a/TaikoWebUI/Localization/LocalizationResource.en-US.resx b/TaikoWebUI/Localization/LocalizationResource.en-US.resx
index 3cc99fa..c79edb5 100644
--- a/TaikoWebUI/Localization/LocalizationResource.en-US.resx
+++ b/TaikoWebUI/Localization/LocalizationResource.en-US.resx
@@ -864,4 +864,70 @@
   <data name="Challenge Competition Data" xml:space="preserve">
     <value>Challenge Competition Data</value>
   </data>
+  <data name="Accepted" xml:space="preserve">
+    <value>Accepted</value>
+  </data>
+  <data name="Rejected" xml:space="preserve">
+    <value>Rejected</value>
+  </data>
+  <data name="Challenge Target" xml:space="preserve">
+    <value>Challenge User</value>
+  </data>
+  <data name="Last For (Days)" xml:space="preserve">
+    <value>Duration (days)</value>
+  </data>
+  <data name="Song" xml:space="preserve">
+    <value>Song</value>
+  </data>
+  <data name="Only Play Once" xml:space="preserve">
+    <value>Only Play Once</value>
+  </data>
+  <data name="Fulfilled" xml:space="preserve">
+    <value>Limit Reached</value>
+  </data>
+  <data name="Participated" xml:space="preserve">
+    <value>Participated</value>
+  </data>
+  <data name="FullChallengeTitle" xml:space="preserve">
+    <value>Challenge from {From} to {To}</value>
+  </data>
+  <data name="ReceiverChallengeTitle" xml:space="preserve">
+    <value>Challenge from {From}</value>
+  </data>
+  <data name="CreatorChallengeTitle" xml:space="preserve">
+    <value>Challenge to {To}</value>
+  </data>
+  <data name="Create Challenge" xml:space="preserve">
+    <value>Create Challenge</value>
+  </data>
+  <data name="Create Competition" xml:space="preserve">
+    <value>Create Competition</value>
+  </data>
+  <data name="Create Official Competition" xml:space="preserve">
+    <value>Create Official Competition</value>
+  </data>
+  <data name="Create" xml:space="preserve">
+    <value>Create</value>
+  </data>
+  <data name="No Select" xml:space="preserve">
+    <value>No Selected Song</value>
+  </data>
+  <data name="Max Participant" xml:space="preserve">
+    <value>Max Participant</value>
+  </data>
+  <data name="Select Song" xml:space="preserve">
+    <value>Select a Song with Difficulty</value>
+  </data>
+  <data name="Select User" xml:space="preserve">
+    <value>Select Challenge Target User</value>
+  </data>
+  <data name="Any" xml:space="preserve">
+    <value>Any</value>
+  </data>
+  <data name="On" xml:space="preserve">
+    <value>On</value>
+  </data>
+  <data name="Off" xml:space="preserve">
+    <value>Off</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/TaikoWebUI/Localization/LocalizationResource.fr-FR.resx b/TaikoWebUI/Localization/LocalizationResource.fr-FR.resx
index 0d1af08..444c169 100644
--- a/TaikoWebUI/Localization/LocalizationResource.fr-FR.resx
+++ b/TaikoWebUI/Localization/LocalizationResource.fr-FR.resx
@@ -864,4 +864,70 @@
   <data name="Challenge Competition Data" xml:space="preserve">
     <value>Données de compétition de défi</value>
   </data>
+  <data name="Accepted" xml:space="preserve">
+    <value>Accepté</value>
+  </data>
+  <data name="Rejected" xml:space="preserve">
+    <value>Rejeté</value>
+  </data>
+  <data name="Challenge Target" xml:space="preserve">
+    <value>Objet de défi</value>
+  </data>
+  <data name="Last For (Days)" xml:space="preserve">
+    <value>Durée (jours)</value>
+  </data>
+  <data name="Song" xml:space="preserve">
+    <value>Chanson</value>
+  </data>
+  <data name="Only Play Once" xml:space="preserve">
+    <value>Jouer une seule fois</value>
+  </data>
+  <data name="Fulfilled" xml:space="preserve">
+    <value>Limite atteinte</value>
+  </data>
+  <data name="Participated" xml:space="preserve">
+    <value>Déjà participé</value>
+  </data>
+  <data name="FullChallengeTitle" xml:space="preserve">
+    <value>Défi de {From} à {To}</value>
+  </data>
+  <data name="ReceiverChallengeTitle" xml:space="preserve">
+    <value>Défi de {From}</value>
+  </data>
+  <data name="CreatorChallengeTitle" xml:space="preserve">
+    <value>Défi à {To}</value>
+  </data>
+  <data name="Create Challenge" xml:space="preserve">
+    <value>Créer un défi</value>
+  </data>
+  <data name="Create Competition" xml:space="preserve">
+    <value>Créer une compétition</value>
+  </data>
+  <data name="Create Official Competition" xml:space="preserve">
+    <value>Créer une compétition officielle</value>
+  </data>
+  <data name="Create" xml:space="preserve">
+    <value>Créer</value>
+  </data>
+  <data name="No Select" xml:space="preserve">
+    <value>Aucune chanson sélectionnée</value>
+  </data>
+  <data name="Max Participant" xml:space="preserve">
+    <value>Nombre maximal de participants</value>
+  </data>
+  <data name="Select Song" xml:space="preserve">
+    <value>Sélectionnez une chanson avec difficulté</value>
+  </data>
+  <data name="Select User" xml:space="preserve">
+    <value>Sélectionnez l'utilisateur cible du défi</value>
+  </data>
+  <data name="Any" xml:space="preserve">
+    <value>N'importe lequel</value>
+  </data>
+  <data name="On" xml:space="preserve">
+    <value>allumer</value>
+  </data>
+  <data name="Off" xml:space="preserve">
+    <value>fermeture</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/TaikoWebUI/Localization/LocalizationResource.ja.resx b/TaikoWebUI/Localization/LocalizationResource.ja.resx
index 0f9255f..6e8fe1b 100644
--- a/TaikoWebUI/Localization/LocalizationResource.ja.resx
+++ b/TaikoWebUI/Localization/LocalizationResource.ja.resx
@@ -864,4 +864,70 @@
   <data name="Challenge Competition Data" xml:space="preserve">
     <value>挑戦と大会</value>
   </data>
+  <data name="Accepted" xml:space="preserve">
+    <value>受け入れられました</value>
+  </data>
+  <data name="Rejected" xml:space="preserve">
+    <value>拒否されました</value>
+  </data>
+  <data name="Challenge Target" xml:space="preserve">
+    <value>挑戦対象</value>
+  </data>
+  <data name="Last For (Days)" xml:space="preserve">
+    <value>期間 (日)</value>
+  </data>
+  <data name="Song" xml:space="preserve">
+    <value>曲</value>
+  </data>
+  <data name="Only Play Once" xml:space="preserve">
+    <value>一度だけプレイ</value>
+  </data>
+  <data name="Fulfilled" xml:space="preserve">
+    <value>すでに満席</value>
+  </data>
+  <data name="Participated" xml:space="preserve">
+    <value>参加済み</value>
+  </data>
+  <data name="FullChallengeTitle" xml:space="preserve">
+    <value>{From} から {To} への挑戦状</value>
+  </data>
+  <data name="ReceiverChallengeTitle" xml:space="preserve">
+    <value>{From} からの挑戦状</value>
+  </data>
+  <data name="CreatorChallengeTitle" xml:space="preserve">
+    <value>{To} への挑戦状</value>
+  </data>
+  <data name="Create Challenge" xml:space="preserve">
+    <value>挑戦状を作成する</value>
+  </data>
+  <data name="Create Competition" xml:space="preserve">
+    <value>大会を作成する</value>
+  </data>
+  <data name="Create Official Competition" xml:space="preserve">
+    <value>公式大会を作成する</value>
+  </data>
+  <data name="Create" xml:space="preserve">
+    <value>作成する</value>
+  </data>
+  <data name="No Select" xml:space="preserve">
+    <value>曲が選択されていません</value>
+  </data>
+  <data name="Max Participant" xml:space="preserve">
+    <value>最大参加者数</value>
+  </data>
+  <data name="Select Song" xml:space="preserve">
+    <value>難しいと曲を選ぶ</value>
+  </data>
+  <data name="Select User" xml:space="preserve">
+    <value>挑戦対象を選択</value>
+  </data>
+  <data name="Any" xml:space="preserve">
+    <value>指定しない</value>
+  </data>
+  <data name="On" xml:space="preserve">
+    <value>オン</value>
+  </data>
+  <data name="Off" xml:space="preserve">
+    <value>オフ</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/TaikoWebUI/Localization/LocalizationResource.resx b/TaikoWebUI/Localization/LocalizationResource.resx
index 261ce54..c452a4b 100644
--- a/TaikoWebUI/Localization/LocalizationResource.resx
+++ b/TaikoWebUI/Localization/LocalizationResource.resx
@@ -864,4 +864,70 @@
   <data name="Challenge Competition Data" xml:space="preserve">
     <value />
   </data>
+  <data name="Accepted" xml:space="preserve">
+    <value />
+  </data>
+  <data name="Rejected" xml:space="preserve">
+    <value />
+  </data>
+  <data name="Challenge Target" xml:space="preserve">
+    <value />
+  </data>
+  <data name="Last For (Days)" xml:space="preserve">
+    <value />
+  </data>
+  <data name="Song" xml:space="preserve">
+    <value />
+  </data>
+  <data name="Only Play Once" xml:space="preserve">
+    <value />
+  </data>
+  <data name="Fulfilled" xml:space="preserve">
+    <value />
+  </data>
+  <data name="Participated" xml:space="preserve">
+    <value />
+  </data>
+  <data name="FullChallengeTitle" xml:space="preserve">
+    <value />
+  </data>
+  <data name="ReceiverChallengeTitle" xml:space="preserve">
+    <value />
+  </data>
+  <data name="CreatorChallengeTitle" xml:space="preserve">
+    <value />
+  </data>
+  <data name="Create Challenge" xml:space="preserve">
+    <value />
+  </data>
+  <data name="Create Competition" xml:space="preserve">
+    <value />
+  </data>
+  <data name="Create Official Competition" xml:space="preserve">
+    <value />
+  </data>
+  <data name="Create" xml:space="preserve">
+    <value />
+  </data>
+  <data name="No Select" xml:space="preserve">
+    <value />
+  </data>
+  <data name="Max Participant" xml:space="preserve">
+    <value />
+  </data>
+  <data name="Select Song" xml:space="preserve">
+    <value />
+  </data>
+  <data name="Select User" xml:space="preserve">
+    <value />
+  </data>
+  <data name="Any" xml:space="preserve">
+    <value />
+  </data>
+  <data name="On" xml:space="preserve">
+    <value />
+  </data>
+  <data name="Off" xml:space="preserve">
+    <value />
+  </data>
 </root>
\ No newline at end of file
diff --git a/TaikoWebUI/Localization/LocalizationResource.zh-Hans.resx b/TaikoWebUI/Localization/LocalizationResource.zh-Hans.resx
index 279c073..252d2ff 100644
--- a/TaikoWebUI/Localization/LocalizationResource.zh-Hans.resx
+++ b/TaikoWebUI/Localization/LocalizationResource.zh-Hans.resx
@@ -864,4 +864,70 @@
   <data name="Challenge Competition Data" xml:space="preserve">
     <value>挑战与大赛</value>
   </data>
+  <data name="Accepted" xml:space="preserve">
+    <value>已接受</value>
+  </data>
+  <data name="Rejected" xml:space="preserve">
+    <value>已拒绝</value>
+  </data>
+  <data name="Challenge Target" xml:space="preserve">
+    <value>挑战对象</value>
+  </data>
+  <data name="Last For (Days)" xml:space="preserve">
+    <value>持续时间（天）</value>
+  </data>
+  <data name="Song" xml:space="preserve">
+    <value>歌曲</value>
+  </data>
+  <data name="Only Play Once" xml:space="preserve">
+    <value>单次挑战</value>
+  </data>
+  <data name="Fulfilled" xml:space="preserve">
+    <value>已满员</value>
+  </data>
+  <data name="Participated" xml:space="preserve">
+    <value>已参加</value>
+  </data>
+  <data name="FullChallengeTitle" xml:space="preserve">
+    <value>{From} 向 {To} 发起的挑战书</value>
+  </data>
+  <data name="ReceiverChallengeTitle" xml:space="preserve">
+    <value>来自 {From} 的挑战书</value>
+  </data>
+  <data name="CreatorChallengeTitle" xml:space="preserve">
+    <value>向 {To} 发起的挑战书</value>
+  </data>
+  <data name="Create Challenge" xml:space="preserve">
+    <value>发起挑战</value>
+  </data>
+  <data name="Create Competition" xml:space="preserve">
+    <value>创建大赛</value>
+  </data>
+  <data name="Create Official Competition" xml:space="preserve">
+    <value>创建官方大赛</value>
+  </data>
+  <data name="Create" xml:space="preserve">
+    <value>创建</value>
+  </data>
+  <data name="No Select" xml:space="preserve">
+    <value>无歌曲</value>
+  </data>
+  <data name="Max Participant" xml:space="preserve">
+    <value>最大参与人数</value>
+  </data>
+  <data name="Select Song" xml:space="preserve">
+    <value>请选择歌曲与难度</value>
+  </data>
+  <data name="Select User" xml:space="preserve">
+    <value>请选择挑战的对象</value>
+  </data>
+  <data name="Any" xml:space="preserve">
+    <value>任意</value>
+  </data>
+  <data name="On" xml:space="preserve">
+    <value>开启</value>
+  </data>
+  <data name="Off" xml:space="preserve">
+    <value>关闭</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/TaikoWebUI/Localization/LocalizationResource.zh-Hant.resx b/TaikoWebUI/Localization/LocalizationResource.zh-Hant.resx
index e8a8b7f..4015c94 100644
--- a/TaikoWebUI/Localization/LocalizationResource.zh-Hant.resx
+++ b/TaikoWebUI/Localization/LocalizationResource.zh-Hant.resx
@@ -864,4 +864,70 @@
   <data name="Challenge Competition Data" xml:space="preserve">
     <value>挑戰與大赛</value>
   </data>
+  <data name="Accepted" xml:space="preserve">
+    <value>已接受</value>
+  </data>
+  <data name="Rejected" xml:space="preserve">
+    <value>已拒絕</value>
+  </data>
+  <data name="Challenge Target" xml:space="preserve">
+    <value>挑戰對象</value>
+  </data>
+  <data name="Last For (Days)" xml:space="preserve">
+    <value>持續時間（天）</value>
+  </data>
+  <data name="Song" xml:space="preserve">
+    <value>歌曲</value>
+  </data>
+  <data name="Only Play Once" xml:space="preserve">
+    <value>單次挑戰</value>
+  </data>
+  <data name="Fulfilled" xml:space="preserve">
+    <value>已滿員</value>
+  </data>
+  <data name="Participated" xml:space="preserve">
+    <value>已參加</value>
+  </data>
+  <data name="FullChallengeTitle" xml:space="preserve">
+    <value>{From} 向 {To} 發起的挑戰書</value>
+  </data>
+  <data name="ReceiverChallengeTitle" xml:space="preserve">
+    <value>來自 {From} 的挑戰書</value>
+  </data>
+  <data name="CreatorChallengeTitle" xml:space="preserve">
+    <value>向 {To} 發起的挑戰書</value>
+  </data>
+  <data name="Create Challenge" xml:space="preserve">
+    <value>發起挑戰</value>
+  </data>
+  <data name="Create Competition" xml:space="preserve">
+    <value>創建大賽</value>
+  </data>
+  <data name="Create Official Competition" xml:space="preserve">
+    <value>創建官方大賽</value>
+  </data>
+  <data name="Create" xml:space="preserve">
+    <value>創建</value>
+  </data>
+  <data name="No Select" xml:space="preserve">
+    <value>未選擇歌曲</value>
+  </data>
+  <data name="Max Participant" xml:space="preserve">
+    <value>最大參與人數</value>
+  </data>
+  <data name="Select Song" xml:space="preserve">
+    <value>請選擇歌曲與難度</value>
+  </data>
+  <data name="Select User" xml:space="preserve">
+    <value>請選擇挑戰的對象</value>
+  </data>
+  <data name="Any" xml:space="preserve">
+    <value>任意</value>
+  </data>
+  <data name="On" xml:space="preserve">
+    <value>開啟</value>
+  </data>
+  <data name="Off" xml:space="preserve">
+    <value>關閉</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/TaikoWebUI/Pages/Dialogs/AddChallengeCompetitionDialog.razor b/TaikoWebUI/Pages/Dialogs/AddChallengeCompetitionDialog.razor
index 4fc5725..35cd2b7 100644
--- a/TaikoWebUI/Pages/Dialogs/AddChallengeCompetitionDialog.razor
+++ b/TaikoWebUI/Pages/Dialogs/AddChallengeCompetitionDialog.razor
@@ -34,13 +34,13 @@
         <MudStack>
             @if (Mode == 2 || Mode == 3)
             {
-                <MudTextField @bind-Value="Info.Name" Label="@Localizer["Name"]" MaxLength="16"/>
+                <MudTextField ShrinkLabel @bind-Value="Info.Name" Label="@Localizer["Name"]" Counter="20" MaxLength="20" />
             }
             <MudTextField @bind-Value="Info.Desc" Label="@((Mode == 1 ? Localizer["Challenge"] : "") + Localizer["Describe"])" />
             @if (Mode == 1)
             {
                 <MudStack Row="true">
-                    <MudTextField @bind-Value="TargetUserName" Label="@Localizer["Challenge Target"]"/>
+                    <MudTextField ShrinkLabel @bind-Value="TargetUserName" Label="@Localizer["Challenge Target"]" />
                     <MudButton StartIcon="@Icons.Material.Filled.EmojiPeople" OnClick="@(_ => SelTarget())">@Localizer["Select"]</MudButton>
                 </MudStack>
             }
@@ -60,6 +60,7 @@
                                 <MudImage Src="@ScoreUtils.GetDifficultyIcon(difficulty)" Alt="@ScoreUtils.GetDifficultyTitle(difficulty)" Width="24" Height="48" Style="padding: 12px 0px 12px 0px; margin-right: 8px; vertical-align: middle;" />
                             }
                             <span style="vertical-align: middle; font-family: Nijiiro, sans-serif;">@(musicDetails[song_idx].SongId == 0 ? Localizer["No Select"] : musicDetails[song_idx].SongName)</span>
+                            <MudButton StartIcon="@Icons.Material.Filled.Star" OnClick="@(_ => SelSong(song_idx))">@levels[song_idx]</MudButton>
                             
                         </MudField>
                         <MudIconButton Icon="@Icons.Material.Filled.Settings" Variant="Variant.Text" Color="Color.Primary" OnClick="(_ => OnExpandCollapseClick(song_idx))" />
@@ -107,9 +108,9 @@
             }
             @if (Mode != 1)
             {
-                <MudNumericField HideSpinButtons="true" @bind-Value="ParticipantCount" Label="@Localizer["Max Participant"]" Variant="Variant.Text" Min="1" Max="MaxParticipant" />
+                <MudNumericField HideSpinButtons="true" @bind-Value="ParticipantCount" Label="@(Localizer["Max Participant"] + $"[2-{MaxParticipant}]")" Variant="Variant.Text" Min="2" Max="MaxParticipant" />
             }
-            <MudNumericField HideSpinButtons="true" @bind-Value="LastFor" Label="@Localizer["Last For (Days)"]" Variant="Variant.Text" Min="1" Max="MaxDays" />
+            <MudNumericField HideSpinButtons="true" @bind-Value="LastFor" Label="@(Localizer["Last For (Days)"] + $"[1-{MaxDays}]")" Variant="Variant.Text" Min="1" Max="MaxDays" />
             <MudSwitch @bind-Value="OnlyPlayOnce" Color="Color.Primary">@Localizer["Only Play Once"]</MudSwitch>
         </MudStack>
     </DialogContent>
@@ -158,9 +159,11 @@
 
     private Difficulty[] difficulties = new Difficulty[0];
 
-    private int LastFor = 1;
+    private int[] levels = new int[0];
 
-    private int ParticipantCount = 1;
+    private int LastFor = 7;
+
+    private int ParticipantCount = 5;
 
     private bool OnlyPlayOnce = false;
 
@@ -170,10 +173,12 @@
         _expandeds = new bool[MaxSongs];
         musicDetails = new MusicDetail[MaxSongs];
         difficulties = new Difficulty[MaxSongs];
+        levels = new int[MaxSongs];
         for (int i = 0; i < MaxSongs; i++)
         {
             musicDetails[i] = new();
             difficulties[i] = Difficulty.None;
+            levels[i] = 0;
         }
         Info.challengeCompeteSongs.Add(new());
     }
@@ -189,7 +194,7 @@
         var parameters = new DialogParameters();
         parameters.Add("SelectedSong", musicDetails[i]);
 
-        var reference = await DialogService.ShowAsync<ChooseSongDialog>(Localizer["Create"], parameters, options);
+        var reference = await DialogService.ShowAsync<ChooseSongDialog>(Localizer["Select Song"], parameters, options);
         if (reference != null)
         {
             var songInfo = await reference.GetReturnValueAsync<SongInfo>();
@@ -198,6 +203,7 @@
             {
                 musicDetails[i] = songInfo.MusicDetail;
                 difficulties[i] = songInfo.Difficulty;
+                levels[i] = songInfo.Level;
             }
         }
     }
@@ -212,12 +218,14 @@
                 _expandeds[ex] = _expandeds[ex + 1];
                 musicDetails[ex] = musicDetails[ex + 1];
                 difficulties[ex] = difficulties[ex + 1];
+                levels[ex] = levels[ex + 1];
             }
             else 
             {
                 _expandeds[ex] = false;
                 musicDetails[ex] = new();
                 difficulties[ex] = Difficulty.None;
+                levels[ex] = 0;
             }
         }
     }
@@ -262,6 +270,7 @@
 
         if (Mode == 1)
         {
+            Info.MaxParticipant = 2;
             if (TargetBaid == 0)
             {
                 await ShowError(Localizer["Must Select Challenge Target Error"]);