Theo Guerrero, a 14‑year‑old son of honored royal knights, aspires to become a great warrior and knight following their footsteps. With his closest friends, he enters the Magi School of Heiwa to master the unique ability engrained in the vast world, Magi. As challenges rise and dangers grow, Theo pushes forward, with admiration and honor, to become a strong warrior and knight just like his parents that he and Humanity admires.

Grandier