Frisk managed to fall down a mountain, find some scary ass monsters, and now she will have to fight for her life. But hasn't she done this all before? This story will have cursing and sexual scenes. So this is 18+. Another Frans story. Toby fox created undertale, I own nothing. Underfell is not mine whatsoever. [Cover art has been changed to an absolutely beautiful pic of fellsans and frisk! It was made by a wonderfully talented artist on Tumblr by the name of kamilecn. You should definitely go check out her Tumblr if you have the time!]