Seven Mortal Sins
The proud archangel Lucifer defies God and is thrown into the deepest part of hell as a fallen angel. On her way there, she meets a high school girl named Maria, who offers her help. In hell, Lucifer encounters Leviathan, who tells her about The Seven Deadly Sins-the seven demon kings who rule hell. After they strip Lucifer of her powers, she sets out with Maria and Leviathan on a quest to defeat them.
