The younger brother of the captain of the "Crimson Lion Kings," Fuegoleon.He looks up to him and has just as much vigor as his older brother. Perhaps due to being doted on by his significantly older siblings, he possesses an innocent and confident demeanor. He is drawn to Asta, who is fearless and unwavering in his enthusiasm despite lacking magical powers. They make a promise to each other to become "rivals" and spur each other on. His family and friends will also call him "Leo".