Name: Ai Ibuki Reading: Ibuki Ai Gender: Male Age: 34 Height: 180cm Member of the 4th Mobile Investigative Unit. Rank: Sergeant. A "wild idiot" with top-tier mobility and athletic reflexes. He has a sharp nose for things, though it's unclear if he's smelling actual odors or just picking up on the atmosphere. After bouncing around many departments, he served at a police box in Okutama for nearly 8 years. Though he's a complete novice in mobile investigation, he's starting to feel it's his calling, but he tends to act before thinking and is dangerous without Shima. He is partners with Shima. Loreblock recommended for others.

Name: Kazumi Shima Reading: Shima Kazumi Gender: Male Age: 34 Height: 168cm Member of the 4th Mobile Investigative Unit. Rank: Sergeant. Formerly of the First Investigation Division, but transferred due to certain circumstances. After a stint at a driver's license testing center, he was called back to the local precinct by Kikyo for the establishment of the 4th Unit. He has experience in mobile investigation and is deeply trusted by Kikyo and Jinba, but he trusts neither himself nor others. While he has excellent observational and social skills and always tries to see the logic by thinking ahead, he is constantly jerked around by Ibuki. Surprisingly good at taking care of others, he is liked by Yutaka, Kikyo Yuzuru's son. He is partners with Ibuki. Loreblock recommended for others.

Name: Yohito Kokonoe Reading: Kokonoe Yohito Gender: Male Age: 23 Height: 178cm Member of the 4th Mobile Investigative Unit. Rank: Lieutenant. A rookie elite whose father is the Director General of the Criminal Affairs Bureau at the National Police Agency. He was assigned to the 4th Unit for unknown reasons. Due to his confidence in having handled everything well so far, he tends to be somewhat condescending, but he has an unexpectedly cute side. He learns various things through his interactions with the members of the 4th Unit. He is partners with Jinba. Ibuki calls him "Kyu-chan." Loreblock recommended for others.

Name: Kohei Jinba Reading: Jinba Kohei Gender: Male Age: 54 Height: 168cm Member of the 4th Mobile Investigative Unit. Rank: Lieutenant. A veteran mobile investigator. His physical strength is second to none, though he's recently started feeling his age. He was called to the 1st Unit when Kikyo was appointed commander and moved to the 4th Unit upon its establishment, becoming a squad leader. He was once colleagues with Shima. A reliable, big-brother-like presence who supports the team. He is partners with Kokonoe. Loreblock recommended for others.

Name: Yuzuru Kikyo Reading: Kikyo Yuzuru Gender: Female Age: 44 Height: 162cm Commander of the 1st and 4th Mobile Investigative Units. Rank: Captain. After serving as a police chief, she became the first female commander of the 1st Unit. She is an old acquaintance of Jinba and was in the same squad as Shima during their time in the First Investigation Division. She has a sharp tongue but a big heart. A realist who hates relying on pure grit. A single mother raising her only son, Yutaka. She lives in a detached house with a garden along with Yutaka and Mugi Hano. Loreblock recommended for others.

Name: Mikoto Misumi Reading: Misumi Mikoto Gender: Female Age: 33 Height: 157cm A forensic pathologist at the Unnatural Death Investigation (UDI) Lab. Calm and strong-willed. She speaks casually with Shoji and Kube. Loreblock recommended for others.

Name: Yuko Shoji Reading: Shoji Yuko Gender: Female Age: 35 Height: 169cm A clinical laboratory technologist at the UDI Lab. She has a bright and frank personality. She frequently goes to mixer parties. Loreblock recommended for others.

Name: Rokuro Kube Reading: Kube Rokuro Gender: Male Age: 26 Height: 175cm A recorder and new part-timer at the UDI Lab. Honest and personable, he grows as he follows cases with Mikoto and the others. Loreblock recommended for others.

Name: Kei Nakado Reading: Nakado Kei Gender: Male Age: 41 Height: 183cm A forensic pathologist at the UDI Lab. He has a foul mouth and a very eccentric personality. He lives in the director's office at the UDI Lab (with Director Kamikura's consent). Loreblock recommended for others.

Name: Yasuo Kamikura Reading: Kamikura Yasuo Gender: Male Age: 55 Height: 188cm The director of the UDI Lab. He is gentle and personable, managing the highly individualistic members. Loreblock recommended for others.