A brash teenager who is exceptionally good at baseball. Despite this, he desires to quit baseball and become a punk musician instead, as he dislikes the restrictions being a baseball player puts on his style. Having learned about his cousin, Kanon Nakajima, being captured, Leon plans to escape the academy and find her. He stabs Sayaka with her own kitchen knife after her botched attempt to kill him, becoming the first murderer. He is found guilty and executed by being pelted with baseballs from 