Max

Max (マックス) is one of the primary protagonists of Level 1 Demon Lord and One Room Hero manga and anime series. He was once a heroic warrior responsible for the downfall of a powerful Demon Lord, though in the ten years since, he has slacked off. With Maou's return, the Demon Lord has moved in along with his assistant, Zenia, in an effort to get his old rival back into fighting shape.

History
Max is a brave man who once defeated the Demon Lord. Although he saved the world, he caused a number of scandals and was forced to leave his position. Since then, he has been leading a self-indulgent life, trying to stay out of society as much as possible.