Derpbatable
You, (Y/n) Serif, are a human who has decided to take in two orphaned monsters. These monsters are known as Sans and Papyrus. One day, you and the rest of monsterkind are thrown Underground, where your lives and story now begin. Watch as you, your boys, and your friends grow. Overcoming tragedies and even making something of yourselves.
Disclaimer: For those who are familiar with this story, there have been some major changes, but I hope you enjoy nonetheless.