Chapter Text
I stood at the Last Corridor, awaiting for [y/n] to arrive, as my instincts ordered me.
She still wasn't here.
I thought about her and...strange memories flooded my mind as I thought carefully. Memories of us hanging out, laughing, eating and talking...
My eyes watered and I sobbed heavily. I finally figured it out.
[y/n] had reset. I saw a memory of her promising me that she would never do it, she held my hand and told me, "I will never reset. I promise, Sans. Honest." I held her hand in response and smiled. Anger flared in my left eye, visible as can be.
She broke her promise to me. Why though?
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You headed down the path of the Core, searching for the last monsters to kill. You heard a few shaky footsteps behind you and whipped around, seeing a Final Froggit whimpering, realizing its attempt to sneak away had failed. You ran towards the amphibian monster and slammed it on the head with the frying pan you had found in Hotlands.
The Final Froggit squealed in pain and cracked in half, afterwards dissolving into dust. You walk towards the next room, frying pan in hand. Mettaton was there, laughing at you. He said his 'depressing monologue' and afterwards transformed. Without emotion, you raised the pan and broke the place where his SOUL was, cracking the metal into pieces. The SOUL broke into pieces as he said his last words, Mettaton exploding into a broken rectangle. You stepped around the broken remains of the worthless bot and headed on.
On your way to the Last Corridor, you grabbed the Heart Locket and Real Knife, breaking through the locked chains of the stairs with the knife. You stomped downstairs, ignoring Flowey's stupid tale of despair. He grew afraid as you wielded the knife, the sign clear that you wanted him to shut up. Flowey fled to the Last Corridor, your loud footsteps crashing into the ground as you chased the damn flower. You skidded into the golden hallway, sliding to a stop. Sighting Sans, the hand you used to hold the knife dropping.
"Hey there," you say, grinning. "Did ya miss me?"
Sans said nothing, his left eye bursting into flames.
"Oh, you do remember!" you shouted out with laughter. "And now Sansy-wansy is mad!"
The skeleton stiffened angrily, the light in his left eye getting bigger and brighter.
"I betcha brother loves ya," you taunted, throwing dust onto Sans.
He gives you a questionable look as the grey solid covered his fluffy hoodie. You smile and responded, "I heard people put a monster's dust on something they love!"
Sans's confused face transformed into an expression of horrible rage, the fire in his left eye growing humongous with every moment you made an insult at him. You enjoyed every moment his emotions got worse until a bone charged upwards from the ground towards you. You stepped aside from the bone just in time, smiling at Sans.
"You wanna play the hard way?" you laughed as you wielded the dusty knife in your hand. "So be it, skeletrash."
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It's over.
You thrust your knife at the tired but attentive Sans, of course, making him dodge.
"You think you can get me now? I doubt you'll ever land a hit--"
Your hand pushed forward at full speed, plunging the knife into Sans' cheek and cutting a small mark into it. He screamed in agony, pain pulsing through his bones. You paused for a second, watching his blood drip onto the floor and ooze into the tiles' cracks before thrusting the weapon into his SOUL. His screech was cut short as he collapsed on the ground.
He stared up at you and mouthed, I thought you promised me.
You smiled. "There was nothing to promise," you responded.
And he turned into a filthy pile of monster dust.
You walked on, smiling about the fact you finally killed Smiley Trashbag. Your SOUL lurched with pain despite the fact the scars left on you no longer hurt. You clenched it tightly and growled. Why was it hurting? You did your best to tune it out as you entered the throne room.
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You had erased the world.
Everything was gone.
There was no new world promised for you here.
Just blue and white.
You groaned in disappointment. You're stuck in this empty void with the stupid skeleton you thought had died. No, wait...
...you're stuck in his body.
No way. You tried to move, but Sans was in control right now. You felt your right cheek sting as painfully as a wasp because of the scar you had left on the stupid skeleton. You try pushing that half soul of the sack of bones with yours and finally gained control, the body transforming to look more like your original body. You breathe a sigh of relief, ignoring the skeleton's cries of protest. Now all you had to do was wait.