Age: 45

Birthday: January 10

Height: 186 cm

Weight: 71 kg

Blood type: B

Likes: Cats, sukiyaki, alcohol, equality

Dislikes: Feudalism

Ability: All Men Are Equal; allows him to suppress the abilities of those in the Armed Detective Agency. According to Dazai, it can “adjust the power of their abilities so that they may be controlled.” However, applicants have to pass an "exam entrance" (i.e. they have to display values compatible with the Agency's in perilous situations) to fall under the range of the ability.

President of the Armed Detective Agency.