Ah that twist ending! Seems like Yama overheard Todo's small penis insecurity and decided to shave himself clean (the razor on the final pages) to gain Todo's trust, at some point he discovers a girl is crushing on Todo, perhaps that is what drives him to push things further and employ the help of the delinquent/bully. Ah I loved it. The rape part was a bit... discerning but Todo was consenting to all that other stuff and at the end he comes to the conclusion that he could've fought him off and got away if he tried to and doesn't seem strung up on it anymore so I guess if he's happy I'm happy.
Seishun Kinema