Chūya Nakahara/Relationships

Kōyō Ozaki
Kōyō Ozaki was originally Chūya's mentor, and the two share a very familiar bond. Chūya often calls her Ane-san, (formal version of sister), something that at first annoyed her since she didn't think she was old enough for that nickname.

Osamu Dazai
Dazai is Chūya's former partner back when Dazai was still a member of the Port Mafia. The pair make-up Double Black, or otherwise known as "Soukaku." The two harness a deep relationship with lots of history, involving their childhood. Both know each other well enough to know the way the other thinks, acts, and fights. The two regularly say that they "hate" each other and argue. It's also known that Chūya trusts Dazai.