Seven Mortal Sins anime
After rebelling against the Lord’s will, Lucifer, an Archangel who was once the head of the Seven Heavenly Virtues is expelled from Heaven. After plummeting out of the sky, she crashes through the roof at a high school church. Lucifer continues her descent into Hell, even though she is accompanied by Maria Totsuka (a soft-spoken student at academy).
Lucifer is soon found by Leviathan, an aspiring Demon Lord. They decide to take down the Seven Sins, the Hellish authorities under Belial’s leadership. The Seven Sins combine their power to repel Lucifer. They also contain her divine powers. Lucifer is transformed into a Demon Lord by placing a Garb of Punishment on her body.
Lucifer, longing for revenge, is accompanied by Leviathan and makes her way back home to Earth. There, she forces Maria to be her immortal slave. Lucifer, along with her new companions, sets out to conquer the Seven Sins in order to free herself from the curse imposed by her Garb.