Hey, I've got an idea.

It's just a crack idea, but still. Take, like, Alucard from Hellsing*. Now, if Louise summoned Dracula when he was still Dracula, and Guiche somehow - I don't know yet, somehow it happens - summons Alucard after his stint in Hellsing. Would those two fight each other? Maybe, maybe not. Or they might just chill out and share a drink. Wouldn't be cool if this happens?

I like the direction this is going.

>>1

And taking more vitamin is also good for improving your idea! http://www.personanutrition.com