Leo Saionji is a main supporting character in the anime series King of Prism. He is a cheerful and energetic student at Edel Rose, aspiring to become a Prism Star. Leo is known for his adorable and feminine appearance, as well as his kind-hearted and supportive personality. He specializes in costume design for the group's performances and often provides emotional support to his friends. Leo's role in the series is to bring positivity and encouragement, helping the main cast pursue their dreams.