Script error Kōji Seo (瀬尾公治 Seo Kōji?, born July 26, 1974) is a Japanese manga creator. He debuted in 1996 with the one-shot "Half & Half" in Fresh magazine. His two hits, Suzuka and Cross Over, both mixed the genres of sports with high school romance. Suzuka focused on track and field while Cross Over used basketball. It is also interesting to note that the main love interest of the male protagonists of several of his works are extremely similar in appearance, namely in Half and Half, Cross Over, Suzuka, and A Town Where You Live.
- "Half and Half" (1996)
- W's~Doubles~ (W's～ダブルス～?, W's) (2000–2001 Kodansha)
- Cross Over (2002–2003 Kodansha)
- Suzuka (涼風?) (2004–2007 Kodansha); English translation: Suzuka (2006–2009 Del Rey Manga)
- Love Letter: Seo Kouji Tanpenshū (ラブレター ～瀬尾公治短編集～?) (2007 Kodansha)
- Kimi no Iru Machi (君のいる町?, A Town Where You Live) (2008–ongoing Kodansha)
- Princess Lucia (2009–ongoing Kodansha)