Leo is shorter than the average boy with an average build. He has mid-length, somewhat untidy, orange hair with a low pony tail and bangs that divide in the middle, and his light green eyes add a touch of serenity to his chaotic personality. Despite being a genius, Leo often seems childish and forgetful, and he has a tendency to get into trouble. Nevertheless, he is a deeply sensitive and thoughtful person who cares deeply for those around him. He also uses a catchphrase and it's "Ucchuu"