Hisui

Mirai Asahina and Liko Izayoi first met a mysterious girl with jade-green hair. At first, her name was unknown, but when Mirai Asahina and Liko Izayoi were talking with the Headmaster, the girl decided to call herself "Hisui," taking inspiration from her own hair color. Afterward, Mirai Asahina and Liko Izayoi began to affectionately call her "Ha-chan," giving rise to a friendly nickname. The appearance of this character brought new charm to the story, and her mysterious aura further enhanced the narrative. For fans, she is a fascinating character who makes you want to learn more about her past and abilities.