Y/n had a normal life before everything happened to her a good childhood until she turned 15 and then her mom and dad died coming home take a adventure as y/n survival of school bullies and work and a shadow creature wait WHAT find out more in Nightmare sans x reader but be careful they might become Yandere for you Please don't delete this book if you see a mistake please just translate it if there's no mistake please leave the book alone my first book might be Yandere nightmare book I don't know yet nightmare sans is Corporation in this book None of characters belong to me expect y/n

Want to talk about falling into the wrong place at the wrong time? Y/N definitely scored big time on that one. One moment she's falling, the next she finds herself trapped underground with a monster that wiped out his own kind. He's a cold-blooded killer that never shows any emotion. Though, as time passes, she finds out that Sans isn't as heartless as he plays himself to be. Hello! Writer~San here! Cover art and Undertale AU/Characters aren't mine, but the story definitely is. I hope you enjoy it!!!!