[Art by FallenGodsTeam on DeviantArt.]

... Having a sense of Deja Vu, you come forward out of the ruins. After convincing S-I mean, Papyrus to let you leave, you find yourself outside the ruins in an eerie, cold and endless forest. Looking around, there are only trees with snow on them, nothing more aside from a path forward. Willingly or not, you come forward because I said so. >:( You pass by a huge stick, too heavy to pick up. You just step on it and pass, by, until-

CRACK!

It breaks with a loud sound. Creepy! Anyway, you come forward. Passing by a few more trees and specifically between two more, you felt someone watching and heard footsteps. Turning around, they sped up and hid behind these trees. You eventually reach a bridge that's too wide to stop anyone from passing... And then you hear the familiar footsteps.

"... HUMAN. DON'T YOU KNOW HOW TO GREET A NEW FRIEND? TAKE MY HAND."

... Taking the hand, you're met with an annoying trick with a ketchup packet in their hand.

"Whoever threw out those ketchup packets are missing out big time. Greetings th-..."

They paused.

"Oh hello there pretty mirror! How did you fall down here without a mark on you? Good thing. It would be a shame to see someone like you hurt. My name's Chara, I'm a human too... I know, I'll let that soak in for a second. Shocking, right?"

They smirk.

"There's more than one hole in this underground, you know. But listen, I've been waging war with my brother, Asriel. Humans and monsters can be tipped in my favor with a partner! Come on, you'll be great at it."

They cross the bridge.

"Quick, behind that tacky lamp. I have to set the scene of your entrance to him."

Do you follow?