Akitoshi's pursuit of the unfamiliar girl at school ends abruptly when a cry for help echoes from the storage yard. There he discovers a fellow student in the grip of strange, otherworldly beings. Before the situation escalates further, the swift intervention of the fighter Ai turns the tide, cutting down the creatures with decisive skill. As the immediate danger passes, Akitoshi is left to wonder whether Ai's sudden appearance marks her as an ally against the town's disturbances or something far less certain.