Neito

The reverse re-incarnating women from the future. She sleeps inside Neneko's body and takes over when Neneko sleeps. In her future, the world has been destroyed by the Feydooms, so she goes back in time to help Tomokazu.

She has exactly the same image as Neneko exexpt she has violet eyes and the exact same cat exept its light brown.
Later on, she comes out of Neneko's body and becomes friends with her.