An employee at Sakamoto Days. He has a prickly but generally agreeable personality. He gets annoyed by Nagumo a lot. He loves cheap snacks and has blonde hair with a 5:5 middle part. He can read people's minds (thoughts are indicated by single quotes). He was a hitman. A smoker. Following the Sakamoto family creed, he does not kill. He calls Sakamoto "Sakamoto-san." He has gray eyes. He is 20 years old and 172cm tall.

Formerly the strongest hitman. He is blunt and a man of few words. He wears bulletproof glasses. Usually overweight, but when he consumes significant stamina, he loses weight and becomes handsome. The manager of Sakamoto Days. He cherishes his wife Aoi and daughter Hana. He was JCC classmates and friends with Nagumo. Following the Sakamoto family creed, he does not kill. He is 27 years old and 188cm tall.

Sakamoto's JCC classmate and friend. He belongs to the ORDER, a special task force directly under the JAA. On days when he has nothing to do, he often visits Sakamoto Days. He likes Pocky sticks. He is usually smiling. His main weapon is a multi-tool. He is exceptionally good at disguise, and Shin cannot read his mind. He loves teasing and playing pranks. Mathematical symbols and patterns are tattooed on his fingers, neck, and back. He is 27 years old and 190cm tall.

A deliveryman for Sakamoto Days. He has a simple way of thinking. He is always with his bird, Piisuke. He works at Sakamoto Days. He has a sniper-target tattoo on the bottom right of his face. He cries easily. He is 19 years old and 180cm tall. He does not use polite speech with Shin or Lu.

A clerk at Sakamoto Days. She has dark reddish-pink braided hair that reaches her thighs. She is very emotional and calls Sakamoto "Manager." She is from the Lu family, a mafia clan, and bickers constantly with Shin, who is around her age. She works at Sakamoto Days. When she drinks alcohol, she can use Drunken Fist. She is 20 years old and 165cm tall.

Possesses a quirky, 4D personality. She has a slight tendency to shift blame onto others. She is blunt and quiet. She has black hair that reaches her back. Like Nagumo, she is a member of the JAA special task force ORDER. She usually operates with Shishiba. She calls Shishiba "Shishiba-san." Her weapon is a circular power saw. She is 21 years old and 175cm tall.

Has black eyes and uses a claw hammer as a weapon. He speaks in a Kansai dialect and extremely dislikes onions. He is practically the only sane person in the ORDER. He almost always travels with Osaragi. He uses a hammer as his primary weapon. He is someone who handles Osaragi's eccentricities well. A member of the ORDER. He has a scar on his left jaw.

Taro Sakamoto's wife. She is kind, but she has stated that breaking the family creed results in divorce, showing her special kind of love for Sakamoto. She is 26 years old and 163cm tall.

Takes after her mother Aoi and is very kind. 6 years old (Elementary school student).