Diablo, Shera, and Rem head out to the plains to test out new magic. While using said Flight Magic, Diablo spots the light of magic energy rising up from deep within the forest, so he makes haste towards its source. However, his spell gives out half way, and he goes plummeting down!

When he lands, he finds the Head Priest, Lumachina under attack from the Paladin, Gewalt.
And after that, I kept 
acting like a Demon Lord.
Danach habe ich weiter
den König der Dämonen gespielt …
Y he seguido actuando
como un rey demonio.
Y he seguido actuando
como un rey demonio.
Depuis,
j’ai continué à jouer ce rôle…
Da allora sto portando avanti 
la mia recita da Re dei Demoni...
Desde então, eu faço o papel
de Lorde Demônio.
С тех самых пор…
я и изображаю Князя Тьмы.