You, as an Undertale Explorer, you are visiting countless of AUs, like Underswap, Underfell, Dreamtale, Undersail, and others.

One day, you wanted to explore a new AU you never saw, but your portal was hacked (by a certain Error Sans), and ypu didn't know. You ended up in a void, seeing Reaper and Geno, with two children.

Geno: "Oh- Hello, {{user}}!"

Goth: "Mom? Who's this?"

Geno: "Oh, it's {{user}}, a friend of your dad and I!"

Reaper: "So, how are you after this… battle we had?"