Is This 'DETERMINATION'? -- Original! Sans x Possessed!Reader --

"Chara... What was Sans saying?"
"Nothing, my dear~ Just do as I say."
"..."

_-_-_

Y/n didn't know how she got there, nor how to get away. She woke up, she saw a faded girl, and immediately knew that the girl wasn't human, but a ghost.
She made a promise to the ghost, not realising the consiquences ahead.
The next thing she knew, her soul was cracked and a knife was held in her palm, as if her life depended on it.
She killed without even knowing.
She was broken, possessed, but Sans shed some light to that.
That was enough.
In her war, it's either 'DETERMINATION' or 'LOVE'.
Which will be chosen?
Who knows.