"Promise Me You'll Come Back" ( Undertale!Sans x goddess reader )

You (y/n) were always ignored by kids when you were younger (Cuz they jelly ) because you were 2 years old talking and looking like a10 year old. Everything was perfect a loving family A best friend but... the war broke out,now that and your mom erased every memory of your friend before she died the only thing that she left was this part of a memory "Promise me you'll come back (Y/n)..." You want to keep the promise but you don't remember who you made it two he was a skeleton known as a "monster"... And thought he might be trapped t underground you decide to help the poor souls....not thinking about the consequences bound to come for interfering and what happens when you still have feelings for your childhood friend (plz read this is my first story written and rate every chapter 1-Sanssational if you please and if you want suggest and comment -Mia Mckellar inspired by momo on quotetev. The story "Save"