
Their whole stunt of making students bleed to prove themselves is pretty dangerous actually. I doubt they're using sterilized knives. There's a risk of contamination for blood-transmitted diseases due to the open wounds and all. Plus, people who suffer from hemophilia being peer pressured into cutting themselves could lose a shit ton of blood
The story is surprisingly mature and well fleshed out. It's an interesting take on a conservative man progressively learning who he wants to create a relationship with, and how to give love to his partner instead of just taking whatever's sent his way in the form of love from whoever (namely the women throughout his life).