diff --git a/Sources/EFManager/ManagerChampion.cs b/Sources/EFManager/ManagerChampion.cs
index 9c41a87..220261d 100644
--- a/Sources/EFManager/ManagerChampion.cs
+++ b/Sources/EFManager/ManagerChampion.cs
@@ -24,7 +24,7 @@ namespace EFManager
             if (item == null)
                 return false;
 
-            context.Remove(item.toEF());
+            await context.Remove(item.toEF());
             await context.SaveChangesAsync();
             return true;
         }
diff --git a/Sources/EFManager/ManagerRune.cs b/Sources/EFManager/ManagerRune.cs
index ab1d5eb..a9185da 100644
--- a/Sources/EFManager/ManagerRune.cs
+++ b/Sources/EFManager/ManagerRune.cs
@@ -1,4 +1,5 @@
-using System;
+using Model;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -6,7 +7,51 @@ using System.Threading.Tasks;
 
 namespace EFManager
 {
-    internal class ManagerRune
+    public class ManagerRune : IRunesManager
     {
+        public Task<Model.Rune?> AddItem(Model.Rune? item)
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task<bool> DeleteItem(Model.Rune? item)
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task<IEnumerable<Model.Rune?>> GetItems(int index, int count, string? orderingPropertyName = null, bool descending = false)
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task<IEnumerable<Model.Rune?>> GetItemsByFamily(RuneFamily family, int index, int count, string? orderingPropertyName = null, bool descending = false)
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task<IEnumerable<Model.Rune?>> GetItemsByName(string substring, int index, int count, string? orderingPropertyName = null, bool descending = false)
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task<int> GetNbItems()
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task<int> GetNbItemsByFamily(RuneFamily family)
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task<int> GetNbItemsByName(string substring)
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task<Model.Rune?> UpdateItem(Model.Rune? oldItem, Model.Rune? newItem)
+        {
+            throw new NotImplementedException();
+        }
     }
 }
diff --git a/Sources/EFManager/ManagerRunePage.cs b/Sources/EFManager/ManagerRunePage.cs
new file mode 100644
index 0000000..c6ae9b1
--- /dev/null
+++ b/Sources/EFManager/ManagerRunePage.cs
@@ -0,0 +1,67 @@
+using Model;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace EFManager
+{
+    public class ManagerRunePage : IRunePagesManager
+    {
+        public Task<RunePage?> AddItem(RunePage? item)
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task<bool> DeleteItem(RunePage? item)
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task<IEnumerable<RunePage?>> GetItems(int index, int count, string? orderingPropertyName = null, bool descending = false)
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task<IEnumerable<RunePage?>> GetItemsByChampion(Champion? champion, int index, int count, string? orderingPropertyName = null, bool descending = false)
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task<IEnumerable<RunePage?>> GetItemsByName(string substring, int index, int count, string? orderingPropertyName = null, bool descending = false)
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task<IEnumerable<RunePage?>> GetItemsByRune(Model.Rune? rune, int index, int count, string? orderingPropertyName = null, bool descending = false)
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task<int> GetNbItems()
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task<int> GetNbItemsByChampion(Champion? champion)
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task<int> GetNbItemsByName(string substring)
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task<int> GetNbItemsByRune(Model.Rune? rune)
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task<RunePage?> UpdateItem(RunePage? oldItem, RunePage? newItem)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}
diff --git a/Sources/EFManager/ManagerSkin.cs b/Sources/EFManager/ManagerSkin.cs
new file mode 100644
index 0000000..b028fb2
--- /dev/null
+++ b/Sources/EFManager/ManagerSkin.cs
@@ -0,0 +1,57 @@
+using Model;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace EFManager
+{
+    public class ManagerSkin : ISkinsManager
+    {
+        public Task<Skin?> AddItem(Skin? item)
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task<bool> DeleteItem(Skin? item)
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task<IEnumerable<Skin?>> GetItems(int index, int count, string? orderingPropertyName = null, bool descending = false)
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task<IEnumerable<Skin?>> GetItemsByChampion(Champion? champion, int index, int count, string? orderingPropertyName = null, bool descending = false)
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task<IEnumerable<Skin?>> GetItemsByName(string substring, int index, int count, string? orderingPropertyName = null, bool descending = false)
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task<int> GetNbItems()
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task<int> GetNbItemsByChampion(Champion? champion)
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task<int> GetNbItemsByName(string substring)
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task<Skin?> UpdateItem(Skin? oldItem, Skin? newItem)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}
diff --git a/Sources/LeagueOfLegends.sln b/Sources/LeagueOfLegends.sln
index 6e4980d..da9cb76 100644
--- a/Sources/LeagueOfLegends.sln
+++ b/Sources/LeagueOfLegends.sln
@@ -33,8 +33,6 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "EFManager", "EFManager\EFMa
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "TestManagerEF", "Tests\TestManagerEF\TestManagerEF.csproj", "{ECD6BA04-7338-4AFA-AC4B-D5C60C440D4D}"
 EndProject
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "LolApp", "LolApp\LolApp.csproj", "{0C898A04-092A-49AA-BE65-8AE818A2AF50}"
-EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ViewModels", "ViewModels\ViewModels.csproj", "{D6A68A4D-1F49-492E-8559-6A5C54C03FD9}"
 EndProject
 Global
@@ -91,10 +89,6 @@ Global
 		{ECD6BA04-7338-4AFA-AC4B-D5C60C440D4D}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{ECD6BA04-7338-4AFA-AC4B-D5C60C440D4D}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{ECD6BA04-7338-4AFA-AC4B-D5C60C440D4D}.Release|Any CPU.Build.0 = Release|Any CPU
-		{0C898A04-092A-49AA-BE65-8AE818A2AF50}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{0C898A04-092A-49AA-BE65-8AE818A2AF50}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{0C898A04-092A-49AA-BE65-8AE818A2AF50}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{0C898A04-092A-49AA-BE65-8AE818A2AF50}.Release|Any CPU.Build.0 = Release|Any CPU
 		{D6A68A4D-1F49-492E-8559-6A5C54C03FD9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{D6A68A4D-1F49-492E-8559-6A5C54C03FD9}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{D6A68A4D-1F49-492E-8559-6A5C54C03FD9}.Release|Any CPU.ActiveCfg = Release|Any CPU