Driven Wild by Envy is the second episode of the Seven Mortal Sins anime.
Instead of killing her, Lucifer removes Maria's heart from her body, turning the hapless girl into her immortal thrall. Lucifer and her entourage move into the presidential suite at the Royal Towers Hotel. As they partake in the luxuries of their new quarters, Leviathan tries her best to gain her new mistress' favor, but grows increasingly jealous when Lucifer pays more attention to Maria instead of her.
As a result, when Lucifer makes a short trip to take her mind off her defeat against Belial for a while, Leviathan begins to sexually torment the forlorn girl; but when Maria eventually admits that she has herself sometimes felt envious of her friend Mina because she had not found anyone to love in her life, and states that envy born of love is not a sin, she manages to stir doubts in Leviathan and break the demon's hold on her. After Maria has regained consciousness, Lucifer stimulates Maria's special gift of seeing into discerning the current location of one of the Mortal Sins. Upon hearing that one of them is in Miami, Lucifer calls for their immediate departure.
("Numbers indicate order of appearance")