Leo

Leo (レオ) is one of the secondary characters in Level 1 Demon Lord and One Room Hero manga and anime series. Leo is a warrior who overthrew the Demon Lord together with Max the Brave. Several years ago, he defected from the Kingdom of Bescar and founded the Kingdom of Gamma in the northern part of the kingdom and became its leader. While trusted by his subordinates and the people, he is also recognized by the kingdom as the ringleader of a terrorist organization that illegally occupies the northern part of the kingdom. He is a martial fighter with a wild sense of smell.

Appearance
In his youth, Leo was a young adventurer with dark skin and a well-defined muscular build. When he was still a member of Max's party, Leo used to wear a full-body armor that strongly resembled that of a knight.

Ten years after defeating the Demon Lord, Leo has now been shown to no longer use or have any armor, and that he now barely wears any clothing at all. He seems to have greatly improved his muscle mass over the years, and has also let his hair grow to a relatively large size.

History
Ten years before the rebirth of the Demon Lord, Leo was an adventurer, and a member of Max's party. With whom, on the surface, he seemed to have shared a strong friendship.

Seven years after the defeat of the Demon Lord, Leo decides to leave the Bescar Kingdom and found the Gamma Kingdom in the northern part of the kingdom, and become its leader.