Supernatural, Fantasy, Shoujo, Psychological, Drama, Horror

At Seirei Academy, a series of mysterious demonic ceremonies have been taking place and, in the meantime, the transfer student Yuriya Yuuki is suspected by his classmates. One evening, from his dormitory window, Yuriya sees a girl wandering outside and follows her. Once outside, he encounters a book which allows him to summon the demon Belial, who invites Yuriya to enter into a contract with him…