Aoi Asahina also known as Hina, is a student in Hope's Peak Academy's Class 78th, and a participant of the Killing School Life. Years later, she was a participant of the Final Killing Game. Aoi was always an extremely sporty person who loved to exercise, and participated in many team sports during her school career, including track, basketball, softball, volleyball, tennis, and her favorite sport: competitive swimming. Since elementary school, she broke records in every swimming contest.