Shoujo Kessen Orgia

A competition occurs every twenty years, involving over a hundred Japanese magical organizations. Each sends one representative to take part in a deadly contest that combines sorcery, weapons, and physical combat. The participants fight each night, eliminating one another until only one remains. One of the competitors is Maiko Mizumaki, who entered the event to save her friend Hino. Hino has been affected by an Anomaly, and the only way to cure him is for Maiko to survive the tournament and claim the Anomaly Sandalphon.