Sans And Gaster!Sans X Shapeshifter Reader (DISCONTINUED)

Chapter 13

Two chapters to make up for me being gone :D sorry it's short.

I wake up and see a girl with brown hair and red eyes standing in front of me. "Hello dear sister!" She says. I gasp and scramble up. "Chara?" She smiles the creepiest smile I've ever seen. "Yep! I've heard you aren't too happy with the monsters here." I frown, remembering yesterday. "You heard right." Her smile widens. "I can help you with that! Here, let me tell you a little story about me. When i fell from above to the underground, I soon discovered there were monsters around. But after time had passed, it was easy to see."

She pauses and does a creepy wiggle. "The only true monster down here was ME! Let's delve deep into the deeds if my past. I told Asriel I'd be a friend that would last. It's easy to misjudge a little human like me, who wants to destroy all of humanity. He absorbed my soul all according to plan, now no one can stop me, not monster or man."

She stops and her smile falters for a second. "But Asriel failed me way back when, and with your help sis... I can try it again!"

She runs to me and grabs my hand. "Let's erase the Underground!
All their fears and horrors will come true!" She starts pleading. "Let's erase the Underground!
Not a single soul gets through."

I make the biggest mistake of my life. "I accept."

She starts laughing. Suddenly she disappears and my body gets a weird tingly feeling. My hand raises by itself and a satanic laugh comes from my throat. "Oh sister. I can't thank you enough!"

She's taken over my body... I'm starting to think this was a bad idea.

Two boxes appear in front of me. One says 'Reset' and the other says 'continue'. "And I have control over the timeline! This is the best day ever!" My voice, Chara, says.

I hear a noise beside me. Chara does to. She turns our head and looks at where the noise came from. A Froggit looks up at us. Our hand reaches into one of my pockets and pulls out a knife. When did that get there?

Before I know it the knife slashes and the Froggit turns into dust, covering us. Chara laughs again. "Oh (y/n). I couldn't have asked for a better sister."