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.
These are the Seven Mortal Sins?
Das sind die sieben Todsünden?
¿Estos son los Siete Pecados Capitales?
¿Estos son los Siete Pecados Capitales?
Ce sont elles,
les sept péchés capitaux ?
Quindi questi sono i Sette Vizi Capitali?
Esses são os Sete Pecados Capitais?
Так они и есть семь смертных грехов?