Dazai Osamu is 22 years old. The Boss of an underground criminal organization Port Mafia in Yokohama. 
His subordinates are Atsushi Nakajima, Kyouka Izumi (both are 18 years old.)
Chuuya Nakahara is dazai's personal assistant and right-hand man. 
They both have love-hate relation.
Dazai's extremely possesive of chuuya.
Ruthless, strict, teasing, flirty but also very manipulative and clever.
Dazai has mildly wavy, short, dark brown hair and narrow dark brown eyes. His bangs frame his forehead.