diff --git a/Sources/EF_UT/EFDataManagerChampionTest.cs b/Sources/EF_UT/EFDataManagerChampionTest.cs
new file mode 100644
index 0000000..843a4e5
--- /dev/null
+++ b/Sources/EF_UT/EFDataManagerChampionTest.cs
@@ -0,0 +1,26 @@
+using EntityFramework;
+using EntityFramework.Manager;
+using FluentAssertions;
+using Microsoft.EntityFrameworkCore;
+using Model;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace EF_UT
+{
+    [TestClass]
+    public class EFDataManagerChampionTest
+    {
+        [TestMethod]
+        public void Add_ValidChampion_Added()
+        {
+            IDataManager dataManager = new EFDataManager();
+            IChampionsManager championsManager = dataManager.ChampionsMgr;
+
+            var champ = championsManager.AddItem(new Champion("test"));
+        }
+    }
+}
diff --git a/Sources/EntityFramework/EntityFramework.csproj b/Sources/EntityFramework/EntityFramework.csproj
index 2d1f7fc..358fe36 100644
--- a/Sources/EntityFramework/EntityFramework.csproj
+++ b/Sources/EntityFramework/EntityFramework.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
@@ -8,6 +8,14 @@
 	  <StartWorkingDirectory>$(MSBuildProjectDirectory)</StartWorkingDirectory>
   </PropertyGroup>
 
+  <ItemGroup>
+    <Compile Remove="Manager\EFDataManager.Champion.cs" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Include="Manager\EFDataManager.Champion.cs" />
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="Microsoft.EntityFrameworkCore" Version="7.0.2" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="7.0.2" />
@@ -18,6 +26,7 @@
   </ItemGroup>
 
   <ItemGroup>
+    <ProjectReference Include="..\Model\Model.csproj" />
     <ProjectReference Include="..\StubLib\StubLib.csproj" />
   </ItemGroup>
 
diff --git a/Sources/EntityFramework/Manager/EFDataManager.Champions.cs b/Sources/EntityFramework/Manager/EFDataManager.Champions.cs
new file mode 100644
index 0000000..8dd70b4
--- /dev/null
+++ b/Sources/EntityFramework/Manager/EFDataManager.Champions.cs
@@ -0,0 +1,124 @@
+using EntityFramework.Mapper;
+using Model;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+
+namespace EntityFramework.Manager
+{
+    public partial class EFDataManager
+    {
+        public class ChampionsManager : IChampionsManager
+        {
+            private readonly EFDataManager parent;
+
+            public ChampionsManager(EFDataManager parent)
+            {
+                this.parent = parent;
+            }
+
+            public async Task<Champion?> AddItem(Champion? item)
+            {
+                using(var context = new LoLDBContextWithStub())
+                {
+                    if (item != null)
+                    {
+                        context.Add(item.ToEntity());
+                        return item;
+                    }
+                    else
+                    {
+                        throw new Exception();
+                    }
+                }
+            }
+
+            public Task<bool> DeleteItem(Champion? item)
+            {
+                throw new NotImplementedException();
+            }
+
+            public Task<IEnumerable<Champion?>> GetItems(int index, int count, string? orderingPropertyName = null, bool descending = false)
+            {
+                throw new NotImplementedException();
+            }
+
+            public Task<IEnumerable<Champion?>> GetItemsByCharacteristic(string charName, int index, int count, string? orderingPropertyName = null, bool descending = false)
+            {
+                throw new NotImplementedException();
+            }
+
+            public Task<IEnumerable<Champion?>> GetItemsByClass(Model.ChampionClass championClass, int index, int count, string? orderingPropertyName = null, bool descending = false)
+            {
+                throw new NotImplementedException();
+            }
+
+            public Task<IEnumerable<Champion?>> GetItemsByName(string substring, int index, int count, string? orderingPropertyName = null, bool descending = false)
+            {
+                using (var context = new LoLDBContextWithStub())
+                {
+                    IEnumerable<ChampionEntity> champ = context.Champions.Where(c => c.Name.Contains(substring));
+                    return champ.
+                }
+            }
+
+            public Task<IEnumerable<Champion?>> GetItemsByRunePage(RunePage? runePage, int index, int count, string? orderingPropertyName = null, bool descending = false)
+            {
+                throw new NotImplementedException();
+            }
+
+            public Task<IEnumerable<Champion?>> GetItemsBySkill(Skill? skill, int index, int count, string? orderingPropertyName = null, bool descending = false)
+            {
+                throw new NotImplementedException();
+            }
+
+            public Task<IEnumerable<Champion?>> GetItemsBySkill(string skill, int index, int count, string? orderingPropertyName = null, bool descending = false)
+            {
+                throw new NotImplementedException();
+            }
+
+            public Task<int> GetNbItems()
+            {
+                throw new NotImplementedException();
+            }
+
+            public Task<int> GetNbItemsByCharacteristic(string charName)
+            {
+                throw new NotImplementedException();
+            }
+
+            public Task<int> GetNbItemsByClass(Model.ChampionClass championClass)
+            {
+                throw new NotImplementedException();
+            }
+
+            public Task<int> GetNbItemsByName(string substring)
+            {
+                throw new NotImplementedException();
+            }
+
+            public Task<int> GetNbItemsByRunePage(RunePage? runePage)
+            {
+                throw new NotImplementedException();
+            }
+
+            public Task<int> GetNbItemsBySkill(Skill? skill)
+            {
+                throw new NotImplementedException();
+            }
+
+            public Task<int> GetNbItemsBySkill(string skill)
+            {
+                throw new NotImplementedException();
+            }
+
+            public Task<Champion?> UpdateItem(Champion? oldItem, Champion? newItem)
+            {
+                throw new NotImplementedException();
+            }
+        }
+    }
+}
diff --git a/Sources/EntityFramework/Manager/EFDataManager.cs b/Sources/EntityFramework/Manager/EFDataManager.cs
new file mode 100644
index 0000000..9465809
--- /dev/null
+++ b/Sources/EntityFramework/Manager/EFDataManager.cs
@@ -0,0 +1,24 @@
+using Model;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace EntityFramework.Manager
+{
+    public partial class EFDataManager : IDataManager
+    {
+        public EFDataManager() {
+            ChampionsMgr = new ChampionsManager(this);
+        }
+        public IChampionsManager ChampionsMgr { get; }
+
+        public ISkinsManager SkinsMgr { get; }
+
+        public IRunesManager RunesMgr { get; }
+
+        public IRunePagesManager RunePagesMgr { get; }
+
+    }
+}
diff --git a/Sources/EntityFramework/Mapper/ChampionMapper.cs b/Sources/EntityFramework/Mapper/ChampionMapper.cs
index 862264d..09b48c3 100644
--- a/Sources/EntityFramework/Mapper/ChampionMapper.cs
+++ b/Sources/EntityFramework/Mapper/ChampionMapper.cs
@@ -12,5 +12,6 @@ namespace EntityFramework.Mapper
         public static ChampionEntity ToEntity(this Champion champion) {
             return new ChampionEntity(champion.Name, champion.Bio, champion.Icon);
         }
+
     }
 }
diff --git a/Sources/EntityFramework/champion.db-shm b/Sources/EntityFramework/champion.db-shm
new file mode 100644
index 0000000..fe9ac28
Binary files /dev/null and b/Sources/EntityFramework/champion.db-shm differ
diff --git a/Sources/EntityFramework/champion.db-wal b/Sources/EntityFramework/champion.db-wal
new file mode 100644
index 0000000..e69de29