Naeko Miike serves as a patrol officer within the Tokyo Metropolitan Police Department’s Traffic Division, introduced as both a childhood companion and romantic interest of colleague Kazunobu Chiba. Their bond traces back to Teitan Elementary School, where mutual participation in the broadcasting committee—sparked by her desire to follow Chiba—formed early ties. After relocating during her sixth-grade summer, she eventually returned to Tokyo’s police force under Yumi Miyamoto’s command. Shy and guarded about her past connection to Chiba, she navigates their relationship through subtle gestures, such as encoding a message on a VHS tape meant to surface via his fingerprints—a clue he initially overlooks. Despite her quiet demeanor, she prioritizes duty over personal comfort, halting Chiba at a red light while injured during an emergency to uphold traffic laws. A pivotal kidnapping case involving a serial attacker targeting policewomen forces their unresolved history to the surface. Shielding Chiba during the incident, she sustains injuries that finally prompt his recognition of her identity, bridging years of unspoken history. Her perceptiveness extends to colleagues, evidenced by her quiet observation to Miwako Sato regarding Wataru Takagi’s appeal among female staff. Beyond standard duties, she demonstrates martial expertise by immobilizing a suspect with a precise throw and displays vocal talent during karaoke gatherings. In non-canon narratives, she briefly emerges alongside Yumi Miyamoto in a rescue operation, sharing a relieved embrace with Chiba before discreetly exiting the scene. Her name, blending the Japanese terms for “three ponds” and “seedling,” nods to the “Mikeneko Holmes” series, mirroring her role as a steadfast yet quietly influential presence within the department.