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.
I'll be sure to keep both of them safe.
Ich werde mich gewissenhaft
um die beiden kümmern.
J’assurerai leur sécurité.
Farò in modo che entrambe siano al sicuro.
Vou garantir a segurança das duas.
Я позабочусь, 
чтобы с ними всё было хорошо.