Chancetale sans x reader. (read description plz.)

It begins again.

You have recently completed a pacifist. You have been on the surface with the monsters for a few months now. Living with sans and papyrus is nice. Other than the fact that you eat spaghetti almost every night. But you have gotten used to that. Oh, and we mustn't forget that sans is your boyfriend. 

It's a cool summer night. Perfect for a walk alone in the park. falling into temptation you slip on sans's coat and you walk out the door yelling,

"Going on a walk! I'll be back soon!" You closed the door quietly and you began walking towards the park. The park was close so it didn't take long until you found yourself on a path with flowers and trees surrounding it. A calm breeze was blowing against your body, letting your hair lightly flow with the wind. This was a sensation that you would never get tired of. Looking up, you saw the beautiful stars. They were different colors and they seemed to have captured your attention. So of course you didn't notice the faint footsteps behind you. 

And just when you seemed to notice the faint footsteps, you felt a great pain in your head before you fell to the ground and everything went black. 

You instantly woke up in a new room. All black except for two... buttons? 

Continue

and

reset

You were confused. What do both of these buttons mean? You looked around until you saw a person. They had short brown hair, blood red eyes, a green and yellow shirt, and brown shorts. You walked up to them.

"h-hello? who are you?" They seemed to flinch for a second before they looked down at you.

"Chara." They said before they started started guiding you to the reset button.

"Hey what are you doing?!" You said as you got closer and closer to the button. She ignored you and she kept pushing you until... all was black... again.

You were now on a pile of flowers. Wait, a pile of flowers? You thought to yourself. You couldn't possible be back in the underground... right?

You walk forward and you see a flower with a very angry face on. You were very confused. Why were you in front of flowey again?

"Howdy." they spat at you. 

"Hi" you mumbled.

"so why did ja do it?! Huh?!" They asked. You were confused now.

"Why did I do what?"

"Why did ja reset!" You were confused. What is a reset? Something must have happened after you walk. You strained your mind to remember. But all that you could remember was one word...

Chara.