Chara’s smile fades. Everything this strange child is saying is completely baffling, but one word sticks out that proves that what they’re saying is somehow true.
“Asriel? How do you know Asriel?”
“Asriel is dead,” they say, trying not to let their voice crack at those words. “And so am I. You’re not making any sense - you might know his name, but it’s impossible for you to have met either of us.”
“Unless you’re from some sort of… alternate timeline?” Chara offers, quirking their eyebrow. “When did you fall into the Underground? I fell in 2015, and I was there for three years.”
“ i... i know that, ” Frisk nods, releasing a sigh. Okay, that’s one less thing to have to explain, so that’s good, right? “ i fell in 2115-- i’m from your future i guess, and you must be from my past. ”
They’d blame the reset, but whatever’s happening here is outside Frisk’s control. Which is continually baffling to the child. But no matter-- they became friends before, so Frisk is certain that they can again.
“ i guess you don’t know anything about what happened after you died, huh? ” As far as Frisk knew, Chara hadn’t been conscious until they’d fallen. At least, it certainly didn’t seem that way. “ when i fell, you sort of... attached yourself to me. your spirit, that is. at first you were just a voice in my head, but after awhile i could see you. it took a lot of tries, but eventually, i-- no, we-- you, me, asriel, and the other monsters too-- we were able to break the barrier. ”
They smile at the memory, but it’s short-lived-- though it takes only a moment to reappear on their features. Even if they reset that timeline, if they can get things back to normal, they’ll be able to do it again. Though, all this certainly does complicate things a little bit. For all Frisk knows, maybe the reset didn’t work at all, and the two of them were just brought... here, while everyone else was still free. I’m sure Toriel will wonder where I am, if that’s the case.
Or maybe they’d messed up the timeline so much that it had broken entirely.
Hopefully it was the former option.