怪盗セイント・テール

By day, Meimi Haneoka is an ordinary middle school girl attending St. Paulia's Academy, but by night, she transforms into the mysterious phantom thief Saint Tail. With her best friend Seira, a nun-in-training, Meimi uses her inherited magic skills and clever disguises to help those in need, stealing back ill-gotten gains for their rightful owners. Hot on her trail is her classmate Daiki "Asuka Jr." Asuka, an aspiring detective determined to catch Saint Tail—unaware of her true identity. As their cat-and-mouse game unfolds, unexpected feelings begin to bloom. (Summary by Grok 2)