A world where a village is segregated with angels on one side and demons on the other side. Higaki who was born with no power, is trying to have power from a Numen Pact but he couldn't until he found out his friend Sunaka made a Numen pact with a powerful demon in time to get into Ratoki school, but her Clan is mad at her for doing  a Numen Pact with a Demon instead of an Angel. Higaki's hope began to rise until...