Responses
this is an unhealthy relationship that is wrong for the both of them. even though hyou enjoys beating up setsu, he's disgusted by himself. even though setsu accepts the beatings, he was brainwashed into doing so because hyou keeps on destroying his self-esteem. having extremely low self-esteem is not a good feeling.
It's like a Stockholm Syndrome. The more you've been exposed to your abuser, the more you think this is normal and will trick your brain into gradually liking it.
I don't like the violence, but the victim enjoys it. It's difficult to say what is right and wrong.