After falling from Heaven, Lucifer crashes into a church on Earth where she meets a girl named Maria before continuing her descent to the lowest level of Hell. There she finds herself face to face with Leviathan and her clothes-melting powers!

Lucifer meets Maria again, and their encounter changes Maria's life forever.

Maria's special psychic powers lead Lucifer to Miami where she plans to face the Demon Lord of Lust head-on!

The gang travels to London to face another Mortal Sin, the Demon Lord of Greed. Maria finds a strange shop that sells a potion that purports to grant anyone their wildest desires. Lucifer makes haste to the shop, only to quickly fall into a trap!

Astarotte, the Second Mortal Sin, is a famous net idol, but Lucifer is ready to take her on! As the crowds get bigger, and more is on the line for both Demon Lords, just who will come out on top?

Lucifer is now up against the Demon Lord of Sloth, Belphegor! Lucifer, Maria, and Levi get sucked into Belphegor's game, but can they overcome the tensions building between Maria and Lucifer?