Hana Ichii attends a school that she admired since she was a child. One day, she wakes up and finds herself locked in a cage with her classmates. They are forced to take part in a survival game using their cellphones.
Two feuding eccentric families with super powers clash when their young sons confront each other after a silly mistake. Meanwhile, the local high school principal has mysterious powers of his own that trump those of the two rival clans. How did this civilian acquire them? Or perhaps a better question, who or what is using him?
