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.
I'm going to show them just 
how frightening I can be.
Sie sollen schmecken,
wie schrecklich ich sein kann.
Les mostraré
lo aterradora que puedo ser.
Les demostraré
lo aterradora que puedo ser.
Je jure qu’elles vont regretter
d’avoir défié l’impitoyable Lucifer !
Dovrò mostrare loro
quanto posso essere terrificante.
Mostrarei a elas o quão terrível posso ser.
Я ещё покажу им, 
каково это — иметь со мной дело.