A Fury Unleashed. A crossover AU of Undertale and FURI, where the Underground is a prison and the monsters are the jailors or "guardians" keeping "Frisk" locked away for the safety of the world. The AU is a genocide run.
Crossover - Undertale & Furi - Rated: M - English - Sci-Fi/Suspense - Chapters: 1 - Words: 716 - Reviews: 1 - Favs: 3 - Follows: 3 - Published: 6/10/2020 - [Frisk, The Rider/The Stranger] [Flowey, The Voice]