Female Sans pov
My name is sans the skeleton slayer im a monster from mt.ebott there are monster in underground but that long time ago every monster are free, im am only monster remember the genocide ,frisk tell me about chara is the first human fall down mt.ebott and the one who have the hate soul, be caused the life her have int very good at all she was beat to the ground and the family of her dont give dam thing about her , that why she wants to erase the world we in by kill all the monster, me, my sister, toriel, undyne, asgore , mettaton. Everymonster ,over and over and over and over like never end .
But one reset that day im kill chara and im want to help her and it work she said she was sorry and she caght up feeling she didn't mean it , we are taking when she began glitch like she gonna never have a life in the world, im see her like it im not mad anymore , im mean she kill erveryone over and over, everyone has second chance right not only her but everyone makes mistake. But chara stop me she said no point to save her but she gave her soul she said sans please have my soul im not woth live again im have kil Everymonster in undere group over and over again,  but now you have the soul now promise me that you use to protect everyonesyou love ok she said .
Im nood and took her soul she smiled at me and she disappear for the world that is the last time I see chara again.

Morning ????
Saaaaaaaaaaaans said the female girl????

Mmmmh a female voice that sleepy? ?

A door open there a girl go to the bed second girl bed

COME SANS YOU HAVE TO WAKE UP said the girl who loud voice

..............zzzzzzzzzzz

SAAAAAAAAAAAAAAAAAAAAAANS the girl said began to anyoy off her older sister lazy

ok ok ok papy you don't have yell at me said her older sister

Yep im sans the skeleton slayer and that my little sister papyrus but im call her papy.

SO SISTER YOU HAVE WAKE UP SAID PAPYRUS

The girl sleeping in bed had sat up form her bed is me

HURRY UP AND GET UP GO THE GUIDE YOU HAVE PROBLEMS WITH THE GOBLIN SLAYER KUN THAT YOU GO HUNT GOBLIN WITH HIM said papyrus.

oh yeeeeeh i foget guees you can call me

SANS THIS TO SOON IN THE MORNING FOR YO said papyrus and in cut half the thing she said.

im bone-tired said me .

AAAAAAAAAAAH NO MY FIRST IN THE MORNING IT IS GOT RUINING said papy.

awwww come on papy that not bed to me  said me.

Ahhhhhhhh said papy

hehehehe said me (in thought aaaaa what im am gonna do with you little sister ) im smile.

well that fun  but im to go see goblin slayer kun or his gonna bought a bomb to blow up the city to find me said me im use magic to change and teleport to near to so his dont see her use magic.

Time skip

Goblin slayer pov:

Where is she dont tell me she foget said goblin slayer, im have remember that the first time they meet and become friends, but the first time he meet you he have crush on you.

Flashback

When he was little he dont have author friends expect cow girl, when he go to the mt.ebott he wants to see if the the rumors are true , but he didnt look where he going ,he was going to fall in the hole but lucky you caght he by hand you save his life at first wonder why you at mt.ebott so his know you one off the monster that he hear of mountain mt.ebott because he flower you in one in the night that you go froster that you can train with you power. He was surprised that you have many power and his deply in love  whith you.
End flash back

Goblin slayer was snap out his thoughts about you and him because he heard a sound near him and look around him and his find you try not got by him because he see you use you magic, he silent chuckle because you little wrong move but he think that you dont know he know you have magic , but why you have to hide you magic,  he thinks to himself and get it why hide because you scared his hate monster is that she  thinks of herself he think himself angry 

Im have to tell her that im not think about her like that.

To be continued.