Marin Kitagawa is one of the main characters in the anime series 'Sono Bisque Doll wa Koi wo Suru'. She is a lively and outgoing high school student with a passion for cosplay. Despite her apparent confidence, Marin is caring and considerate, often looking out for others. Her unique fashion sense and dedication to her hobby make her stand out. She befriends Wakana Gojo, the series' protagonist, and enlists his help in creating her cosplay outfits. Their relationship is central to the series, exploring themes of friendship, acceptance, and personal growth.