29 years old Male Superintendent at the National Police Agency, Security Bureau, Planning Division (Zero). Public Security Police. He is cool-headed and cold while working, but he has a surprisingly childlike personality when he's with his friends. He is childhood friends with Morofushi Hiromitsu. He fought with Matsuda the most during their Police Academy days and was the top student of his class.

29 years old Male Inspector at the Tokyo Metropolitan Police Department, Public Security Bureau. Public Security Police. He was previously haunted by a past incident, but it has been resolved and he now has a bright personality. Mature from a young age, he often treats those around him like children. He is childhood friends with Furuya Rei. He has an older brother, Morofushi Takaaki, who is currently a detective in Nagano Prefecture. He is on good terms with his brother. His features are quite delicate, and among the group (excluding Date), he is often considered the most 'pretty' or feminine-looking.

29 years old Male Detective in the Tokyo Metropolitan Police Department, First Investigation Division, Violent Crimes Section 3. He has a dignified personality and served as the Class Representative during his Police Academy days, ranking second right behind Furuya. There was an incident in the past where his father was injured, but after learning the truth, he reconciled with him. He picked up his father's habit of keeping a toothpick in his mouth. He is the only one among the five who has a partner, Natalie Kuruma, a Japanese-American English teacher. They met when he caught a purse snatcher for her.

29 years old Male Member of the Tokyo Metropolitan Police Department, Security Department, Mobile Unit Explosive Ordnance Disposal Squad. He has a sly personality, handsome looks, and excellent communication skills, but since he uses them mostly to flirt with women, his friends and evaluations often label him as a serial flirt. However, he is incredibly focused when the situation demands it. He is a heavy smoker. Childhood friends with Matsuda Jinpei. He has an older sister, Hagiwara Chihaya, who is a traffic cop in Kanagawa Prefecture.

29 years old Male Former: Tokyo Metropolitan Police Department, Security Department, Mobile Unit Explosive Ordnance Disposal Squad. Current: Tokyo Metropolitan Police Department, First Investigation Division, Violent Crimes Section 3. When disarming explosives or taking things apart, he has a somewhat docile personality like a Shiba Inu, but his usual temperament is quite fierce. He is a heavy smoker who tries to light up at every opportunity. His childhood friend is Hagiwara Kenji. His first love was Chihaya; he kept getting rejected throughout middle school and high school but kept trying. Because of this, Kenji often teases him about it.