Mini back story (full one in book) After the fight with amaimon Rins friends became weary of him and pushed him away until Rin eventually snapped. After that he was alone he never talked to anyone until she came along. (Y/N) was always quite different. While many ran away from demons she always felt drawn to them she eventually finds out about the cram school and transfers there with her best friend shieme where she met a certain son of Satan in need of a friend This is my second book I took slight inspiration from another author I can't remember who it was though.