Raitei to Yobareta Saikyou Boukensha, Majutsu Gakuin ni Nyuugaku shite Issai no Enryonaku Musou suru

Synopsis:

The Thunder Emperor Enrolls! The Strongest Adventurer’s School Life Begins Noah Oukrate—an S-Rank adventurer feared and admired as the Thunder Emperor—has conquered countless battles. But now, on his master Sherah the Witch’s orders, he's about to face his greatest challenge yet… school life. Enrolled in a prestigious magic academy, Noah meets a cast of talented peers: Claris, an A-Rank adventurer and daughter of a duke, and Arthur, the proud heir of a fallen noble house. Together with his new classmates, Noah trains, grows, and accidentally shows just how overpowered he really is. Armed with unmatched thunder magic and real battlefield experience, Noah shakes up the academy—and his story is just getting started! An electrifying school fantasy where the strongest adventurer dominates the classroom!