Cross Over.

Kōji Seo (瀬尾公治, Seo Kōji; born July 26, 1974) is a Japanese manga creator from Shobara, Hiroshima, Japan. He has stated in an interview that he was a member of his high school's track and field team and that he loves to watch baseball, both of which are emphasized in his hit manga Suzuka. He debuted in 1996 with the one-shot HALF & HALF in Magazine Fresh.