The Golden Soul [Sans X Reader]

Nightmare

   (P.s) Chara and Frisk are both females

      *Reader's dream*
     You look down at the bloody knife in your hand. Shock and guilt run throughout your body. But... you smile. The grin widens and you start to chuckle. The chuckle quickly turns into psychotic laughter. Blood drips off the knife making a rhythmic plopping sound. The ghosts that had been constantly following you appear. Frisk and Chara.
   "Congratulations (Y/n). You officially killed the rest of the underground. And don't worry, me and Frisk took care of the king and the crying weed." My laughter paused for a second as she said this. I looked back down at the knife and again at them. Without thinking I lunged and stabbed Frisk in the gut. She froze.
   "*coughing*." Blood came from her mouth as I slowly pulled back out the knife. She fell on the floor with a thud. Chara's eyes were wide. You could feel the hurt resonating from her as she watched, horrified at Frisk's still and lifeless body. With her off guard you swung on your heel, grabbed her from behind and slit her throat. Black blood oozed from the wound. Her eyes turned black and she disappeared. You know she didn't die, she must be at the reset screen. Your head turned to the dust and blue jacket on the floor. You dropped the knife and walked over to it. You fell to your knees as reality finally hit. Tears fell like a waterfall down your cheek and neck. You held your stomach tightly, you felt sick. Your hand reached out and grabbed his warm, blue jacket. It was big but you put it on. It felt warm against your chilled skin and empty chest.
   "Sans...I'm so sorry... IM SORRY SANS! Why did I do this? What happened to me?!" Tears fell faster and you hit the ground with your fist.
   "I know you'll never forgive me...but... somewhere, deep inside me... I know we'll be happy again." A golden light floods the corridor and your recently black soul was pure gold again. You closed your eyes and looked up, praying to the stars.
  "Please... never let us remember this or any other timeline with me in it... ever." The world starts to fade away. You close your eyes and smile, a pure and happy one. The feeling that everything will once again be ok makes your soul glow brighter. Your filled with optimism, hope, . . . and love. Then it's all gone. Frisk is alive again, along with Sans. No one remembers you. Not even Chara. . .
                                *Reader POV*
     I wake up and start crying. Sans walks in the room, then runs over as he sees me upset. 
  "(Y-y/n) what's wrong?" I grab him by the shoulders and pull him into a tight hug.
   "Sans... please... forgive me! I'm sorry!" His eye turns slightly blue.
  "Forgive you for what? Please, tell me what's wrong." He pulls you away and looks you in the eyes.
   "... I... I killed you. And all the others. Including Frisk. I remember everything." I fall back onto him.
   "I'm sorry...." He hugs you tightly. His voice is softer than a whisper, and has a quiver.
  "I remember now... but, still... I forgive you."