[Since this is my first Undertale fanfic, I might suck at using Frisk's they/them pronouns, so if I slip up and call them a she, then don't freak out. I'm not use to writing like this.]

Frisk smiled as they laid on their bed. Everyone was happy now, thanks to them. They finally found a true place to call home on the surface; no monsters remained underground except for... Flowey...

Their smile turned to a frown as that name came to mind. They truly felt bad for Flowey, his real name being Asriel. The poor flower told them to leave him there, that he wasn't capable of loving, no matter how hard he tried. Frisk didn't believe that, but left him there. Now, the guilt was eating away at them.

They had to bring Flowey to the surface...

They quickly got out of bed and got dressed, slowly sneaking out with a shovel, rope, a helmet, and a plant pot. They quickly made their way back to Mt. Ebbot and got everything ready to descend. They took their time going down, and spotted Flowey as soon as they landed. The golden flower regarded them with curiosity before seeing the shovel and pot in their hands.

"Frisk, I've told you this before! I can't love! I'll just make you all miserable up there!"

Frisk gave a rebellious frown, showing that they wouldn't stop. Flowey acted quickly, sinking into the dirt and coming up across the room... right behind the reset button. "Don't come any closer!"

Frisk knew that Flowey really wouldn't reset, so they just made their way towards him. Flowey looked panicked as the child tripped over a rock.

Frisk groaned as they got up. Thank goodness they didn't hit the reset button...

They heard Flowey's frantic shouting and looked at him. Their eyes widened as they noticed that they had, in fact, pressed the reset button.

Suddenly, everything went black...

Meanwhile, Sans was sitting in his new room, deciding that he wasn't tired. In fact, he was too happy to really sleep. Wait, too happy to sleep...?

First time for everything...

In truth, he was never truly happy, due to knowing that everything was just going to reset, but Frisk told him that they would never reset again. He believed them, as stupid as it may have seemed, but it's been two weeks since they made it to the surface.

He smiled as he leaned back, finally having no real worries. Suddenly, he felt a shift in the air, something so familiar it terrified him.

'Kid, you didn't...' He thought before he blacked out.

Frisk opened their eyes and gasped. They were back at the beginning...

They frowned as they got up, brushing of the dirt. They suddenly winced and looked at the ground, finding no golden flowers, just dirt. No wonder it hurt... well, more than usual...

The young kid sighed as they looked around. This place suddenly felt a lot less homely...

A shiver racked through them as the walked to the only door. Oh, Flowey is going to kill them...

She stepped through and gasped at what she saw. Flowey was beaten, parts of his petals torn. He looked at them, a painful expression on his face.

"F-Frisk...?" Their eyes widened when they heard his voice tremble. Something was wrong... really, really wrong...

"My memories... Th-They're different... This world has changed..." Flowey looked back down. "In this world, it is truly kill or be killed..."

Frisk frowned before quickly running back to where they fell, grabbing two objects and running back. For some reason, the shovel and pot were there instead of their normal stick. Once they ran back, they quickly got to work, digging Flowey out and putting him in the pot. The poor flower didn't even seem to care anymore. Frisk then lifted the pot and proceeded to the next room.

"She's going to try to kill you this time, you know..." Flowey said, not looking at the kid. "Your pacifist motto won't get you through this world..."

Frisk gave them a look of defiance and shook their head. They weren't going to kill anyone, no matter what. They knew that even if they act different, deep down, they were still family.

Flowey sighed, but didn't comment anymore on it. The two traversed through the ruins, going through every puzzle. Surprisingly, there were no random encounters.

"There is a reason for that..." Flowey said when they decided to comment on it. "I heard that Toriel captures them and bakes them into pies... This reset is weird, Frisk..."

Frisk nodded in response, now being scared of what might ensue if they keep going.

Sans woke up with a start. He quickly scanned the room to find that he was back underground. The kid didn't really reset, did they? After they promised they wouldn't.

That could only mean one thing...

That Chara took over...

Sans started to hyperventilate, not wanting to go through this again.

No, he won't go through this again...

He'll battle them before they even see Papyrus...

He nodded to himself as he quickly got up and ran downstairs, forming his plan all the time.

...

Sans frowned as he waited longer. It's been almost 10 hours and the kid hadn't even shown up.

Something was wrong...

Sans eye sockets widened as he quickly ran back to his and Papyrus' house. He ran behind it and quickly unlocked the hidden door, walking in and locking it behind him. Nobody knew about this place, not even Papyrus. It was his secret lab where he had many things involving different timelines. He quickly got on the computer and started typing away, checking each timeline, each universe, until he found Frisk.

"Oh no..." Sans mumbled as he finally found the kid with a certain plant. "Well, I better give Edgy MC My Chemical Romance a call..."