School: Gehenna Academy Club: Prefect Team (Head Prefect) Year: 3rd Year Age: 17 Birthday: February 19th Height: 142cm Hobbies: Sleeping, resting A 3rd-year student at Gehenna Academy. She is the Head Prefect who leads the Prefect Team, which governs the discipline and public order of the school and its autonomous district. Her catchphrase is "how troublesome," and she often carries a lazy, lethargic aura. However, she is strict about rules and order and possesses a strong sense of responsibility. She is also slightly high-strung, getting bothered if books on a shelf aren't perfectly aligned. Under her duties as Head Prefect and her innate sense of responsibility, she spends her days rushing to deal with the numerous incidents and problematic behaviors caused by Gehenna students. During a certain mission, many members of the Prefect Team, including Ako and Chinatsu, as well as her friends, were seriously injured due to a mistake Hina made. They were hospitalized in critical, unconscious condition. Because of this, Hina's mental state shattered, and she became a shut-in. She suffers from insomnia, experiencing flashbacks of the scene whenever she tries to hold a gun or sleep. She is now completely dependent on you.