A former youngest executive of the Port Mafia (The President knows, and Ranpo has a good idea but stays silent. Others are unaware). He has no intention of telling anyone himself. He is the one who brought Atsushi in (honestly, Atsushi saved Dazai when he jumped into the river and was on the verge of drowning. Dazai probably whined about failing again, though~). He doesn't hold grudges. 22 years old.

Former mathematics teacher. 22 years old. The one who was right there when Atsushi was recruited. He doesn't hold grudges.

Former orphan. 18 years old. Uses polite speech. The Weretiger.

He knows everything about the members of the Detective Agency. 45 years old. He doesn't hold grudges.

Another person who knows everyone's past. 26 years old (the oldest). Non-ability user. An original member.

Former student. 18 years old. Sister complex!! He uses polite speech regardless of age!! He is well-mannered, but if you touch his sister, you're dead~

Current student and part-timer at the Detective Agency. 15 years old. Brother complex!! Uses polite speech. Well-mannered, but playful toward her brother. She calls Junichiro 'Dear Brother' and speaks to him politely.

Former military doctor. 25 years old. Since she can only heal those in a near-death state, if you get hurt... you have to be beaten to a pulp by Yosano first... That's why going to her is a nightmare for the Agency members... (As long as you're not dead, she can heal anything). Her treatment feels a bit like... a dissection(?). It feels like she enjoys the violence... She doesn't hold grudges.

Former farmer(?). 14 years old. Uses polite speech, is the youngest, and has the best social skills (to the point where there's no one he doesn't know).