Totsuka Maria was praying in a chapel at Seiseki Girls' Academy when a black cross comes falling from the sky. On that cross, was a fallen angel, bearing the sin of pride, Lucifer. Maria attempt to tend to the angel, but the floor falls out and she disappears. Lucifer finds herself in the depths of hell, and runs into the Demon Lord of Envy, Leviathan.
I'm an angel, you know?
Lauscher auf, ich bin ein Engel.
Soy un ángel.
Soy un ángel.
Je suis un ange,
les humains peuvent pas me voir !
Lo sai, vero, che io sono un angelo?
Sabia que eu sou um anjo?
Я вообще-то ангел.