One Last Shot (Sans X Vamp Reader)

You're a 1,800 year old vampire. You were alive during the war against humans and monsters, but you were the only vampire to survive it but you were young then only 700 years old. Your parents hid you with their best friend W.D Gaster only to never return. Gaster raised you with his two sons in the underground only to disappear a couple of years later. Since then you've been on your own. But that all changes when a young child falls to the underground.

I own none of the pictures in this story.