Frisk digests that quietly. That makes sense. The Underground had a lot of deviation to it, but ultimately it was a fairly linear path. The main variables that would change were who lived and who died, and the minute shifts in what Frisk would choose to say to someone else. Here, the possibilities are endless. The idea is both exhilarating and terrifying.

"Why you?" The question leaps out before Frisk can assess whether or not it's a good idea, and their face reddens consequently. "I mean - why were you always the one to explain EXP and LOVE to me? Was that...your job?"

He had that kind of awareness, they learned that by coming back again and again and whispering his..."codewords". But Asgore remembered that he killed them too, hadn't he? They wish there was a clearer picture of how this worked. But they're the one setting all the SAVEs, and they don't even understand it, so they can hardly expect someone else to.