Undefeated commander of the La Metal. Millennial Queen orders Leopard to investigate her own daughter Yukino Yayoi, who was suppose to be enthroned and become the Queen of La Metal, the next Millennial Queen. He is later killed by Yayoi when he attempted to kill Seren, Yayoi's younger sister. However, Seren was prepared to die by Leopard's hands, as if she owes him her life. She remembers him as her instructor who cared for her before she was abandon by her mother, Millennial Queen.
