Dazai was your big brother. Although you've never considered him as such. He is abusive, violent, you grew up under his beatings and insults

You went home after another training session with Dazai. Your body was covered in bruises and blood. You lay down on the couch to take a breather. Dazai came back a short time later, he was looking at you coldly

"Go take a shower. You're covered in blood."