Undertale starts with Sans' abilities

...

In front of the shelter.

The survivors all rushed to the shelter. The crowd gathered together and the noise was very noisy.

"Hurry up, the one in front"

"Don't push, why are you in such a hurry?"

"Can I let my child in first? My child is still young and won't take up much space.……"

……

" MTT……Please, answer the phone quickly."

Dr. Efes had a trace of nervousness and fear on his face, and kept calling MTT.

"Ding ding ding, the number you dialed is busy, please call again later……"

"How could this happen? This is the seventh call now."Dr. Efes said in a trembling voice.

"Don't worry, MTT is very strong, he... will be fine." Asgore comforted him.

Then, he moved his eyes to the purple light column and said seriously:

"This is not magic, this is some kind of power growing"

"I feel the same way." Toriel said worriedly

………

"I have to go, there's an emergency."

"Monsters and humans are in danger. As an ambassador, I cannot just stand by and watch."

Frisk clenched his fists and said solemnly

"Frisk, you are not fighting alone, I have something that can help you"

"I want to go too! We have to save everyone."

Paparis and Andine said at the same time

""Let's get going without delay." Toriel also urged.

So...

Paparis got a car from somewhere and started it.

The car carried everyone farther and farther away.

They moved towards the sunset. The clouds on the horizon danced leisurely, casting a faint purple halo, creating a romantic picture.

In the distance…

X-G looked into the distance and smiled

"Your decision is quite interesting, player."

"But it just makes my job easier"

……

And long ago……

"Since XG resurrected Cross, he has been in a negative relationship."

"I know I can't let this happen again……"

"So, before the reversal, Dream took him to my Omega timeline."

In the snow, a human wearing gray, black and white clothes and pants stood next to another figure.

The snowflakes in the sky drifted slowly, quietly falling on the clothes of that figure, melting into crystal water droplets, and falling along the folds of the clothes.

"Did he fight with Nightmare after he went to the Omega timeline?"

Core Fu thought for a while and said,"Yes, his emotions were very unstable at that time, and Nightmare followed his emotional fluctuations and came to him."

"Of course, nightmare was shot into pieces by the arrows composed of Dream's positive emotions, and then fled."

Liu Yang nodded silently, and then said:"Can I go to your Omega timeline?"

Core Fu was stunned for a moment, and asked in confusion:"Why? I usually don't bring creators to the Omega timeline easily, even Ink has not been here a few times."

"What's more, since you know about the battle between Cross and Nightmare, it means that you can see my timeline (although I don't know how you did it. Normally, what's happening in this world should be isolated from me). In this case, what's the point of visiting my timeline?"

"Don't worry, I'm just curious."Liu Yang said calmly.

"After all, seeing is definitely not as good as feeling it in person.……"

"And I want to make some friends……"

……