diff --git a/Sources/apiLOL/EFDataManager.cs b/Sources/apiLOL/EFDataManager.cs
index 7814fa0..55e5759 100644
--- a/Sources/apiLOL/EFDataManager.cs
+++ b/Sources/apiLOL/EFDataManager.cs
@@ -10,19 +10,115 @@ namespace apiLOL
 
 		// Constructor
 		public EFDataManager(MyDbContext context)
+		{
+			_context = context;
+		}
+
+		public IChampionsManager ChampionsMgr => throw new NotImplementedException();
+
+		public ISkinsManager SkinsMgr => throw new NotImplementedException();
+
+		public IRunesManager RunesMgr => throw new NotImplementedException();
+
+		public IRunePagesManager RunePagesMgr => throw new NotImplementedException();
+	}
+
+	public class EFChampionManager : IChampionsManager
+	{
+		private readonly MyDbContext _context;
+
+		public EFChampionManager(MyDbContext context)
 		{
 			_context = context;
 		}
+		
+		public Task<Champion?> AddItem(Champion? item)
+		{
+			throw new NotImplementedException();
+		}
 
-        public IChampionsManager ChampionsMgr => throw new NotImplementedException();
-
-        public ISkinsManager SkinsMgr => throw new NotImplementedException();
-
-        public IRunesManager RunesMgr => throw new NotImplementedException();
-
-        public IRunePagesManager RunePagesMgr => throw new NotImplementedException();
-
-        // Implement the interface
-
-    }
+		public Task<bool> DeleteItem(Champion? item)
+		{
+			throw new NotImplementedException();
+		}
+		public Task<Champion?> UpdateItem(Champion? oldItem, Champion? newItem)
+		{
+			throw new NotImplementedException();
+		}
+
+		public Task<int> GetNbItems()
+		{
+			throw new NotImplementedException();
+		}
+
+		public Task<IEnumerable<Champion?>> GetItems(int index, int count, string? orderingPropertyName = null, bool @descending = false)
+		{
+			throw new NotImplementedException();
+		}
+
+		public Task<int> GetNbItemsByName(string substring)
+		{
+			throw new NotImplementedException();
+		}
+
+		public Task<IEnumerable<Champion?>> GetItemsByName(string substring, int index, int count, string? orderingPropertyName = null,
+			bool @descending = false)
+		{
+			throw new NotImplementedException();
+		}
+
+
+		public Task<int> GetNbItemsByCharacteristic(string charName)
+		{
+			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<int> GetNbItemsByClass(ChampionClass championClass)
+		{
+			throw new NotImplementedException();
+		}
+
+		public Task<IEnumerable<Champion?>> GetItemsByClass(ChampionClass championClass, int index, int count, string? orderingPropertyName = null,
+			bool @descending = false)
+		{
+			throw new NotImplementedException();
+		}
+
+		public Task<int> GetNbItemsBySkill(Skill? skill)
+		{
+			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<int> GetNbItemsByRunePage(RunePage? runePage)
+		{
+			throw new NotImplementedException();
+		}
+
+		public Task<IEnumerable<Champion?>> GetItemsByRunePage(RunePage? runePage, int index, int count, string? orderingPropertyName = null,
+			bool @descending = false)
+		{
+			throw new NotImplementedException();
+		}
+
+		public Task<int> GetNbItemsBySkill(string skill)
+		{
+			throw new NotImplementedException();
+		}
+
+		public Task<IEnumerable<Champion?>> GetItemsBySkill(string skill, int index, int count, string? orderingPropertyName = null, bool @descending = false)
+		{
+			throw new NotImplementedException();
+		}
+	}
 }