Description
Chinatsu Hinomiya is a first-year Gehenna Academy student and medical officer for the Prefect Team, the academy's disciplinary body. She manages most of the team's paperwork despite her aversion to it, acting as a stabilizing influence who restrains impulsive members like Iori Shiromi and Ako Amau to prevent chaos. Her formal speech and serious demeanor project initial coldness, countered by a softer side that surfaces around cute animals, causing her to lose composure.

She wears glasses and carries a large satchel stocked with medical supplies like syringes and bandages. Her outfits typically feature red elements, reflecting her preference for the color. Nearsighted, she struggles to recognize people without her glasses but functions adequately in situations like wearing hot springs attire. Chinatsu wields a black Mauser M712 Schnellfeuer pistol named "Support Pointer," often using it more for gesturing than combat.

Originally from the Emergency Medicine Club before joining the Prefect Team, Chinatsu maintains ties with her former club and facilitates communication between departments. Both Prefect Team leadership and administrative staff trust her reliability and diligence, though her workload frequently leads to overwork and late nights at the academy. Her medical expertise includes healing abilities to recover allies' health and remove status ailments, alongside enhancing evasion or defense for teammates during combat.

In the 1.5th Anniversary Short Animation, Chinatsu responds to a mall crisis involving chaotic automated turrets, collaborating with the Foreclosure Task Force, Make-Up Work Club, Prefect Team, and Hyakkiyako Alliance Academy. Other media depict her pursuing Problem Solver 68 into Abydos district, participating in "Chairman Hina and her Summer Vacation," and featuring in "Operation Record of No. 227 Hot Spring Resort." During the latter event, she visits a hot spring resort, adopts a relaxed demeanor, and uses a modified pistol to shoot nutritional drinks.

Chinatsu develops a connection to Sensei, noting their shared habit of working overnight. Her feelings manifest in bold thoughts, sometimes contemplating actions to justify medical interventions. She is among the first Gehenna students Sensei encounters during initial missions, including repelling an attack by Wakamo Kosaka, which deepens her respect for Sensei's leadership.