[Joking isn't his style, well...not anymore?]

Something terrible happened here, in this very shelter. Something that caused the death of six billion people. A virus outbreak...

[Despite promising her to be honest, he has to lie this time and pretend he doesn't know what possibly happened. It's not even because of the paradox that would occur, but simply for her own sake.]

I'm here to figure it out and prevent it from happening if that's possible.