CRONOS HAZE

Amagiri Academy—a school that takes up the entirety of a single island. Touya only has a vague recollection of his father and enrolls in this school that he attended in order to learn what became of him. But soon after school begins, Touya is dragged into one mysterious and troublesome affair after another...! (Source: Crunchyroll) — Description from AniList community (anilist.co).