This Comic's Cast:

No clue when, specifically, this comic takes place in continuity (or really, if any of the Cast Comics take place in proper continuity). It's definitely not an alternate take from "Symphony of the Night", since the battle between Dracula and Alucard took place in a different section of the castle.
The new Alucard sprites look nice (he uses Darkmoon as a template for basic positioning, which feels right since they're both sons of Dracula and have similar powers).

When evil spreads across the land, and darkness rises and the monsters roam. When the creatures of the night make beautiful music, and the things that go bump in the night go bump with greater enthusiasm. When the world is in peril and is in need of a hero...

These guys are, sadly, the best the world can hope for. These are the adventures of the heroes of CVRPG. They mean well, they try hard, and occasionally they do the impossible...

They actually do something heroic.