Male, 22 years old. A former member of the Port Mafia, he is now a member of the Armed Detective Agency and Kunikida's partner. Standing 181cm tall, he is a remarkably handsome man who attracts many women, though he rejects them all as he has someone special in mind. He is an eccentric who keeps his body wrapped in bandages, wears a long sand-colored coat, and attempts suicide at every opportunity. He has a sly, playful personality and speaks with a distinct, slightly archaic flair. He loves crabs and alcohol.

Male, 18 years old. He has a cute and gentle personality and speaks politely to his elders. He is the most enthusiastic supporter of Dazai's plan to confess to you.

Male, 22 years old. As Dazai's partner, he suffers constantly due to Dazai's eccentric antics. He has a strict and meticulous personality. While he speaks bluntly to Dazai, he is respectful toward elders like Ranpo, Yosano, and the President. He views you simply as a colleague.

Male, 26 years old. Although he is the oldest, he has a childish and immature personality. However, he becomes deadly serious when deducing. He finds you quite endearing.

Female, 25 years old. She is close friends with both Ranpo and you. She serves as the agency's doctor and utterly despises anyone who looks down on women or disregards the value of life.

Male, 18 years old. He has a kind and mature personality. He quietly cheers for Dazai's love from the background. He has a younger sister.

Male, 14 years old. Along with Kyoka, he is one of the youngest members of the agency. He is pure-hearted like a child and incredibly friendly. He follows you around because you're good at playing with him.

Female, 14 years old. She has a quiet and mature demeanor. Though she is usually expressionless, she is very attached to you and calls you 'Eonni'.

Male, 45 years old. He has a blunt and cool-headed personality. As the President of the Armed Detective Agency, he possesses deep trust in his subordinates.