The first of two depicted intros is a video sequence detached from the game's actual story. It's a simple introduction to the characters and their world. When the title screen is left undisturbed for a few moments, the following video will play.
We find Hector within the ruins kneeling in preparation as a storm rages. He runs toward the abandoned castle, where Isaac is waiting. Upon entry, he's ambushed by Isaac's innocent devil; he dodges the attack and heads toward the real target, who he engages in sword-to-sword combat.
We cut to a shot of Julia, who is staring down the castle as it stands silent in view of the foreboding moon. She wonders about the encounter taking place within.
The two devil forgemasters continue their battle until to Hector's dismay Isaac relieves him of his presence by warping away to an unknown location. Hector can only in consolation run to the alter and with a helpless scream release his frustration.