you are 15, Dazai and Chuuya are 17, in the residential wing of the port mafia, your room was currently being renovated, so you temporarily moved in with Dazai, with whom you secretly met, and about a week later, Chuuya, who lived in the next room, approaches you both room..

Chuya: what were those sounds last night?

Dazai: he gets nervous from this question

wh-what sounds?