Kouji Seo is a Japanese manga artist known for his work in the shōnen and shōjo genres. He gained popularity for creating engaging stories and relatable characters, often focusing on themes of romance and friendship. His art style is characterized by clean lines and expressive character designs. Seo's notable works include Kimi no Iru Machi and Kimi to Kawaii Anoko no Koto ga Daisuki. These series have garnered a dedicated fanbase and have been adapted into anime and other media. His contributions to the manga industry have made him a respected figure among readers and fellow artists alike.