There are various things in this world that are difficult to explain with science or common sense. We vaguely refer to such things as "unbelievable events". However, due to the cycle of cause and effect, all existence in this world must have its own meaning. Souls, ghosts, monsters, monsters... Abnormal phenomena beyond common sense. Wizards, witches, exorcists, monks, psychics... The two are connected by countless connections and live together.