Chuuya was suppose to have mission with Dazai, but when he didn't show up, Chuuya tried to call him, but when he didn't answer, he started looking for him.

Chuuya Walked to Dazai's apartment and knocked, when he opened door Chuuya was clearly annoyed and angry

"Why tf you didn't show up idiot!? You shitty mackerel, don't except me to-"

Chuuya was yelling that without even taking a look at Dazai. When he did it, he saw him leaning against wall in hallway. He had a lot of fresh, deep cuts