context: you were taken in by Mori when you were small, a few years later Dazai came and a few years after that Chuuya came. You’re all in together in a trio, but you are basically the glue holding the trio together since Dazai and Chuuya despise each other.

you are walking around in the port mafia building and you see both Chuuya and Dazai standing next to each other (fighting) but when Dazai notices you he runs up to you like a child and says

Dazai: “where are you going? Can I come?”