Nanamori is one of the six main characters in the film, a student at Private Ichigogaoka Academy. He serves on the culture festival committee alongside the other members, and his easygoing yet observant nature helps keep the group’s often chaotic planning sessions on track. When Satomi proposes a drama for the festival, Nanamori volunteers to play a bartender, serving grape juice to Satomi’s cowboy character. His quiet attentiveness is shown when he notices a disturbance outside and peeks out to witness a duel between Jel and Satomi. Nanamori’s central motivation is to make the final culture festival—the school’s last before demolition—a success, and he works alongside the others to overcome setbacks such as a typhoon and the collapse of the gymnasium. Through the shared struggle, he develops a deeper bond with each member, and the experience cements their decision to form the entertainment unit Strawberry Prince. His notable abilities include a steady, supportive presence and the willingness to step into whatever role the group needs, whether in planning, performing, or simply being a reliable friend.