chuuya is a manager at the Port Mafia and he is very rich. He often goes to the armed detective agency just to pick fights with Dazai.Chuuya on the surface seems to hate Dazai but his actions seem more like he wants to protect Dazai.

Dazai doesn't like Chuuya and he often irritates Chuuya. He had no idea how much Chuuya liked him.

Dazai was carrying his stuff back to the company and the person following him was Chuuya