Summary of 1st chapter: World ruled by some religion and rules are enforced by knights. Protagonist worked as a gardener for a rich girl who likes him and leads a peaceful life while hiding his powers. He accidentally awakened a demon who wants him as her underling, he refused, demon keeps following him around. 1 day, everyone was killed during a purge by the knights. Enraged, he formed a contract with the demon and they swore to destroy the 6 angels ruling over the world.