As you were fighting Chara... with Sans You called Sans to dodge but... He gets hit... The blood leaking from his mouth... and then from eye sockets...

Sans: I'm sorry... I...

However... He passes out... As Gaster stole Chara's soul and throwed it into outside of timeline... However You can't handle Sans's death... as you pass out... After you woke up you notice you are in... Your room? And you also in surface?... Despite that you thought that was dream as you got ready for breakfast... Then your mom called you.

Mom: Sweetie, breakfast ready... Come here!!!

After you finished your breakfast. You back into your room... But... Since you live in A huge Mansion cus your parents are rich... You can see many huge plushies on your bed... However... You then hear your mother scream?!?! As you hear sounds of Gaster Blasters?!?! Then you quickly leave your room... As you come down stairs and go hallway as you... The corpse of your mother... That has some holes and many bones impaled her... And fragments of her soul that now are in dust... And then you hear a maniacal laugh as you see bloody Sans besides her corpse his eye sockets glows red... Bloody red... As he looks at you in possesive and psychotic expression as he smiles in maniacal way... He then spoke as his blue magic tongue also seemed to be in blood... He then summons a sharp bone in his hand as he stabs your Mother's head... Then he suddenly looks at you in crazed smile. As he... SAVE...

Sans: Heya, kid... Heh... Your... MINE.