How to read

This is an Undertale fan fiction that I have been writing, in order to fully understand the story basic knowledge of Undertale and it's characters are recommended. This story is rated M for 18+ It contains adult launaguge (cursing) drug and alcohol use and nudity including descriptive sex scenes. I don't not own the rights to any song or art used in this story. I hope you enjoy my Undertale fan fiction. xD