Sin count: 7

A normal girl named Ophelia was forced to commit all 7 deadly sins due to circumstance. She falls into the hidden 8th pit of hell where Satan's commanders live and are allowed to toy with sinners as much as they please. Through her travels she meets a fallen angel named Sariel who becomes her protect from stray feral demons and even commanders. He claims she will be the rebirth of hell and he counts on her living through all the blood shed.