"That's fine. Zouken isn't worried about Sakura's personality. What matters to him is her body and its connection to Angra Manyu."
"He's planning to take over her empty body after her personality disappears.
…I don't think you know, but Zouken can take over anyone's body as long as the worm bearing his soul exists. That's how he stayed alive until now.
From the start, Sakura was just a body to eventually possess."
Then what?
The thing possessing Sakura.
If what's changing her is a contract with a Servant
"Zouken kidnapped me, probably because he didn't want to let Sakura open the gate.
He wanted me to take the role of the Holy Grail, allowing him to take over Sakura's body once she became Angra Manyu's Master."
"I guess he plans to take over Angra Manyu in time, since a soul given flesh is a living example of the Third Sorcery. It's like speaking ill of a perfect God because you're a human with desires."
"……The definition of God's creation… It's something that's made from people's wishes, but not affected by people's intentions.
Well, I bet any god will turn into a devil if it reflects Zouken's personality. That must be why Kotomine considered him his enemy."