Seira Mimori

As a quiet and observant nun-in-training, this contemplative classmate serves as the sole confidante to Meimi Haneoka regarding her secret identity as Saint Tail. Often found in the school chapel, she listens to others' grievances regarding stolen items and discreetly passes these leads to her best friend. While her calm nature contrasts with Meimi’s energy, she occasionally acts as a decoy to protect the thief's secret, driven by a deep, caring concern for her friend's safety.