You're probably not going to believe me, but... I don't like talking about my father, and he only told me about this once, so if it doesn't make much sense, that's why.

His best friend apparently told him that he'd been pulled out of time himself, once. He fought his way past a lot of heroes from our past, and eventually had to defeat something called a "Time Reaper", from ten thousand years in the future. It had torn a rift in time itself, and... not even Dracula had that kind of power. But he said killing the thing fixed that and sent everyone home. If it's one of those... God, there might be somebody watching us to see who's left if we all turn on each other, to find out who's "strongest".

[In hindsight, namedropping Dracula like he's a real person probably isn't the most overwhelming piece of this.

Worse yet, it's all actual canon, so much as a single route through a fighting game in story mode can be.]