Maria is glad she gets to see Lucifer again, believing that she's an angel, and then has her heart stolen by the Demon King. Lucifer forces Maria to follow her and lets her live a life of luxury. Meanwhile, Leviathan, who has strong feelings for Lucifer starts to get jealous over Maria because Lucifer won't pay any attention to her.
Envy is a mortal sin that 
makes you fall to Hell!
Neid ist eine Todsünde,
die dich zur Hölle führt.
La envidia es un pecado
que te manda al Infierno.
La envidia es un pecado
que te manda al Infierno.
Je suis l’incarnation
du péché de l’envie !
L'Invidia è un vizio capitale,
fa precipitare dritti all'Inferno!
A inveja é um pecado capital 
que te levaria para o inferno!
Ведь зависть — это смертный грех, 
за который люди попадают в ад.