"Since how many days you haven't slept , chuuya ?" "That's none of your concerns, dazai!!"

Toya's father doesn't want him hanging around with a guy like Akito, but Toya would do anything to see Akito in any possible way, including An and Kohane. His father hates how Toya gave up Classical music for some "nonsense". His father has no other choice, but to choose violence. Not just to Toya, but to his friends too.