Ochikobore Datta Ani ga Jitsu wa Saikyou: Shijou Saikyou no Yuusha wa Tenseishi, Gakuen de Mujikaku ni Musou suru

Eugene, a hero, is forcibly reincarnated by the demon king Venomzard. In a world far in the future, he becomes a noble boy named Julius. Freed from his "hero" mission, Julius decides to enjoy his second life and his school life. However, his brother, Gaias, mocks him, and his parents and teachers co...

Source: MyAnimeList