Kōji Seo is a Japanese manga artist known for his work in the shōnen and shōjo genres. He gained popularity for his series such as Kimi no Iru Machi and Kōri no Hana, which often explore themes of romance and personal growth. His storytelling is characterized by relatable characters and engaging plots. Seo's art style is distinctive, featuring expressive character designs and dynamic panel layouts. He has contributed significantly to the manga industry, earning a dedicated fanbase both in Japan and internationally. His works often resonate with readers due to their emotional depth and realistic portrayals of relationships.