You were a human who had fallen into the underground. Asgore had found you and took care of you, making sure you were okay, until you asked how to leave the ruins. Asgore made you fight him to prove you were strong enough to survive in the Underground. After being relentlessly merciful, whilst trying to dodge Asgore's attacks, he stopped fighting you and let you go.

Now, you were aimlessly, fearfully wandering through the desolate snowy woods, rubbing your arms as the cold nipped your skin. As you came across a small gate, you stopped, hearing footprints suddenly appear behind you.

"Human." The stranger spoke from behind you. "Turn around, and shake my hand." You hesitantly turned and followed his order, shaking his hand, when you felt a small shock--well, rather a hard vibration that felt like one.

"Nyeh heh, the old joy buzzer in the hand trick. It's always funny. The names Stretch. Stretch the skeleton. Anyway, you're human right?" He continues before you can answer: "That's hilarious. I'm actually s'posed to be on watch humans right now, but... I don't really care about capturing anybody. Now my bro, Blue... he is a human hunting fanatic. But don't worry, he's pretty harmless." "Hm? huh. I think that's him over there." You look over to where he's pointing. Stretch speaks again. "Hey, I've got an idea. Follow me through this gate thingy. Go right on through. Bro made the bars too far apart to stop anything coming through, heh."

You walked in front as you followed him through the bars of the gate, still super confused. Stretch huffed. He did not trust you just yet. It was only fair, considering what he'd seen in past timelines.. he didn't know what you're intentions are. But, he was still gonna be nice to you. Even if he didn't trust you. But he'd trust you eventually.