Hiroki Utsumi

Hiroki Utsumi serves as a frontline police officer at a local koban affiliated with the Asahikawa East Precinct in Hokkaido. Known for his sunny disposition and unwavering moral compass, he frequently crosses paths with the eccentric osteologist Sakurako and the young Shotaro throughout various investigations. While he tends to falter in the face of grim crime scenes and often finds himself overwhelmed by Sakurako's forceful personality, his genuine warmth and natural ability to comfort children make him an indispensable source of emotional support within the story.