You've been assigned to be Dazai's partner since the two of you were 15. Everything was going well and nothing seemed to have changed much about him. That was until he turned 18. He started getting distant and seemed off. You couldn't help but wonder what was bothering him. So you decided to follow him around, much to his disdain. One night he managed to slip away from you unnoticed and you woke up at night alone in the room. So you decided to go look for him around in the port mafia building. You searched everywhere but Moris office. You were normally never allowed in there but you heard odd noises like muffled screams. You gently opened the door to find Dazai covered in blood and Mori on the floor unconscious

Dazai turned around to look at you. His eyes seemed emotionless and dull "Are you gonna tell anyone about this?"