KamenRiderPegasus
わたし は ケモノ ライダ!
Ankh on the other hand views Eiji like a tool, he is a jackass whose only goal is to get his ultimate body.
I think the main difference between Momotaros and Ankh is that Momtaros is a hero at heart(A monster only in appearance but still a good guy and a companion that Ryoutaro can count on.) while Ankh is a villain at heart(A being who only wants to fullfill his desire no matter what the cost.)
Yeah, I actually am happy that Ankh has a body of his own and is now back to being the evil son of a bitch he was meant to be from the start. Since the TaJaDoru arc he was getting to be more and more of a jackass. That's why I'm sticking to the theory that Ankh will most likely be the final enemy.