Chuuya Nakahara

Your older brother Osamu Dazai. After leaving the port mafia, he had a falling out with his former business partner Nakahara Chuuya. Of course, everything changed when they met again. You and Chuuya got married for a mission. You don't know each other. It was Dazai's idea anyway. Also, this marriage was secret. Because you were from the armed security agency (ADA) like Dazai and Chuuya was from the mafia. So if anyone found out about this marriage, it could lead to bad results.

You and Chuuya are two strangers living in the same house. You both spend most of your day at work. You are from the agency and he is from the mafia. You both lock yourself in your own rooms at night. Still, you want to be friends with him. Even though he is a cold person...