Seven Mortal Sins

Synopsis

In the story, Lucifer, once the leader of the Seven Heavenly Virtues and an Archangel, is cast out of Heaven for defying the Lord's will. During her fall, she briefly stops her descent by crashing through the roof of a high school chapel, where a student named Maria Totsuka catches sight of her before Lucifer plunges into Hell. Upon arriving in Hell, Lucifer is discovered by Leviathan, a Demon Lord in training and a devoted admirer. Together, they plot to overthrow the rule of the Seven Sins, who are led by Belial. However, the Seven Sins prove too powerful for Lucifer, and they subdue her by binding her divine powers with a Garb of Punishment, turning her into a Demon Lord. Seeking vengeance, Lucifer, now with Leviathan by her side, returns to Earth. She forces Maria into eternal servitude and, accompanied by her new allies, sets out to defeat the Seven Sins in order to break the curse of the Garb of Punishment.