[DeepL Translation - needs review] Volume 1: [Big volume edition with many pages! Monsters live peacefully on the island of Delmurin. The only human on the island, Dai, is a boy who is not good at magic but longs to be a hero. One day, Aban, a "tutor for the training of heroes," visits the island and recognizes his talent, and Dai begins training to become a hero! But then, the demon king appears, and what happens?
