Momo Nishimiya is a third-year student Kyoto Metropolitan Curse Technical College.

Momo first appears as a reserved girl who was intimidated by the students from the Tokyo School. She has a close relationship with the girls at her school, Kasumi and Mai and believes that women are unfairly treated even in the jujutsu world. She was also willing to follow the idea that Yuji was a danger to everyone, putting her in direct conflict of ideals with Nobara Kugisaki.