Yume Yume You You

Yume Yume * You You is about Kagura Yume, a girl with a twin sister who hogs the spotlight. Yume feels inferior to her sister since she's smarter, prettier, and more popular than her. One day, while slacking off on her studies, Yume discovers a mysterious mirror that releases people from other worlds into hers! Yume must transform into a miko and save both worlds!