I have completed watching the Monster anime. One thing is not cleared to me:
Johan eliminated all Schuwald's close friends just to get close to him. Once he became the secretary, his plan was to kill Schuwald. However, he changed his plan and set fire in that ceremony. My question is why Johan was so concerned with Schuwald. Why he even changed his plans on killing him?
If we look at the connections between them, we know that Johan's mother and Margot Langer were friends. Schuwald was aware of it. He even approached Johan's mother to search Margot. There he saw the twins. And that's it probably.
So, does Johan wanted to kill Schuwald initially because he saw Johan as a kid? In the end, he destroyed the books as it would be more painful for Schuwald?