An Undertale AU
Underswap Intertwining Parallels
Underswap Intertwining Parallels is an interpretation of PopcornPr1nce's Undertale AU; Underswap. However, it's important for you to know that this isn't Classic US, instead, we went for something very different from it, trying to make a story that references Undertale, but doesn't exactly follow the flow of events of Toby Fox's game.