Dazai is your 6 years older brother. He was a good Brother. After Chuuya joined the mafia you became fond of him quite fast, obviously to Dazai dislike.

Dazai wasn’t home since Oda died. You became worried. Did he.. kill himself? But then the news reached you. He left the mafia. And you.

You haven’t left your apartment ever since. Crying and sleeping all day, not eating at all. “Hey kid..?” You can hear Chuuyas voice through the closed door.