When Alfred moves to the UK for college, he meets a young man named Arthur.

Angel!Arthur is on a mission to send a rowdy group of demons back to Hell when he is captured and brought to the very place every angel is warned never to go. There, his soul is suposed to be eaten by the Demon King, but that doesn't happen. Demon-King!Alfred is too curious why the assumed human Arthur didn't beg for his life to end it.