Momona is a fifteen-year-old member of the local idol unit Itorio, which is based in Fukuoka Prefecture. She has long blue hair and purple eyes, and her appearance reflects a typical idol image. As part of Itorio, she performs alongside her fellow members Yurino and Rina, and the group’s activities are central to her daily life. Momona’s primary motivation is to help Itorio gain popularity and eventually achieve a major debut. She is dedicated to her performances and works to improve her singing and dancing abilities, which are the core of her role as an idol. Within the group, Momona shares a close bond with her teammates, and they support one another through the challenges of the idol industry. Her story arc involves the group’s growing recognition, driven by the online promotion efforts of the shut-in otaku Suuko. Momona and her fellow idols face competition from underground idols like Mariko, and their journey toward mainstream success tests their resolve and teamwork. Through these experiences, Momona develops as a performer and becomes more confident in her place within the group. Her notable abilities include her stage presence and vocal skills, which contribute to Itorio’s appeal to local fans.