(May or may not contain spoilers)

CHAPTER 1

"Welp, I guess that's it, kid. We're free back on the surface, I'll visit Grillby's for the last time underground, wanna join me?" Sans asked with his voice, which seemed to be coming out behind his perpetual smile.

He had his hands inside his pockets, and wore his usual slippers.

Frisk nodded, they hadn't eaten in a while, they were busy visiting Asriel by Chara's grave after he has been defeated. They gave him a hug, he seemed to appreciate it a lot.

The food Grillby's serve were rather disgusting sometimes, they were all covered with oil and unhealthy stuff Frisk didn't understand, such as the fries and burgers.

But since Frisk was starving, anything would do.

"I would take a shortcut… But since this is the last time I see all this, we may as well walk back. You mind? Kiddo?"

Frisk shook their head, each time they see something, a memory pops back, they'll surely miss this place.

While walking through Hotland, Frisk witnessed the hotdog stand again, they remembered when Sans put thirty hotdogs on their head…

The Waterfall, that mysterious place sure was something to look back at, the monster kid as well, they got along quite well.

Whispers could be heard while they walked through the caves, Frisk can't be bothered to read all the history on those walls again, war is over.

"Kid, just sayin', thanks. Asriel wouldn't be defeated if it wasn't for you. Honestly, the surface doesn't appeal to me anymore, we, the monsters, would be trapped down here forever, and I don't mind that… Cause one day history may repeat itself… But still, we all' have to look at the positives, right? The barrier is broken, everyone's free." Sans said casually while they walked through the forest in Snowdin, Frisk didn't know what to respond.

"Sans!"

"Hey Sans, waddup?"

"Sans, you again. Oh, it's Frisk!" Everyone at Grillby's greeted Sans warmly as he entered the doorway, Sans checked for whoopee cushions before taking a seat at his usual spot.

"What would you like, Frisk? Fries or Hamburger?" Sans turned to ask Frisk, who was sitting right next to him.

It even surprised Frisk themselves when they asked for both, Sans chuckled and told Grillby "Grillby, double order of burg and fries.". Grillby nodded gently and gave Frisk a thumbs up.

"Good job…" he said quietly. His glasses reflected the warm lights like guys in anime.

"So… What would you like to do after returning to the surface?" Sans asked as he drank from a bottle of ketchup. "Stay with Toriel? Neat. Oh, hope you didn't want any ketchup."

Sans stayed silence for a moment, his eyes staring at the ketchup bottle. "Remember the lady I told you about earlier behind the doors of the ruins? I found Toriel very similar to that mysterious lady. The way she talks, the way she laughs at my bad jokes… She's nice to have around, if you have decided to stay with her, Papyrus and I probably would too. He needs some actual cooking lessons, Undyne is a great cook, but sometimes she makes too much of a mess in the kitchen. Everyone loves Toriel's pies."

Frisk turned around when they heard something strange outside the doorway.

It was like vile laughter from the depths of hell. Nobody else seemed to hear it. Sans expression changed slightly when he saw Frisk's suspicious face.

"Whasup? Frisk? You heard somethin'?" Sans turned around as well, his barstool squeaked.

Maybe it was just the wind. Frisk thought, ignoring the fact that there's no weather underground. They shook their head violently and began to eat their meal.

Sans, however, didn't let off his guard. He adjusted his gloves and kept on looking back time to time.

The two began walking back to the barrier, Frisk stopped walking abruptly.

"Comon' Frisk, what's wrong?" Sans asked, seriously this time.

All of a sudden Frisk fall onto the ground and cried for help, something was dragging them from their foot.

"Frisk!" Sans yelled as he used his power to attempt dragging Frisk back,

only then he looked up and saw a tiny flower.

With thousands of thick and powerful roots around it that stretched way, way above ground.

Sans' left eye transformed into a glowing cyan pupil, his left hand controlling the steam of power that held Frisk back. The creature opposite of him… The flower, rose its head slowly.

The flower doesn't have a face or anything, it was just like a regular flower, except its not, and it would never be. The flower somehow laughed in a low voice like a demon.

"Well, well… If it isn't my dear friend Sans, and our little hero, Frisk." The flower spoke in a hellish voice no one had ever heard of before.

"Asriel…? Wh- How?" Sans muttered, confused. He was still unable to drag Frisk back, two power grabbed hold of the human child and stayed very still.

"Right… Asriel, that naïve child has no idea how foolish he was. Sans… Do you really think he could occupy my body and give nothing in return? No?"

"Who are you!?" Sans yelled rudely,

"Hand me Frisk, or else you get your one-way ticket to hell. For free." The creature said calmly.

After no evidence of Sans giving up, the creature signed and said, "Come on, Sans, why would I hurt an innocent being like Frisk? I couldn't possibly do that, I'm a nice guy here. Or girl…"

Sans did nothing but tried harder to drag Frisk back. Frisk was very uncomfortable at this point, they were practically floating in mid-air, pulled by two forces with equal strength.

The blue force was pulling both of their arms and the white one was pulling both of their legs. Frisk couldn't hear anything other than the motion of the two unusually strong powers.

"Now come on, Sans! I aren't got all day long, I've got business to do! This is your final warning, let your dirty, babyish blue power go and hand me the human!

I'm doing something that would benefit the entire race of monsters! You could be just as strong as me! Everyone would, and with all the power, the surface would be ours…

"If you let go now, I would give you some bonus as well… You'll be way stronger than any of your friends, how does that sound? Or maybe you'll be interested in some wealth? Perhaps the ability to… SAVE…?"

"Power… You want the surface as well, huh? Ugly?" Sans said, not expecting an answer of any sort.

"Yes, Sans, the monsters could gain back what was supposed to be theirs! Now be good and listen to your new king, or queen, because I'm—"

When Sans sensed the flower was off-guard, he pulled with all his might and won the tug-of-wars.

He opened his shoulders and Frisk landed right into his arms.

The flower thing raged and made the ground shook, its streams of power transformed from white to brown, snow started to melt around the creature.

"Run!" Sans yelled as Frisk started running with him as well.

"SANS! YOU'LL BE THE FIRST TO DIE ON MY LIST!" The flower screamed, followed by vicious laughter which made Frisk's ears unbearable. They didn't have the might to look back.

To be continued…