Read Underwar from the story THE SANS by Fandomness_X3 (Fandomness) with 1,214 reads. undertale, sans. what? vas?
UnderWar - Sir Papyrus the Noble by BlueWolfArtista on DeviantArt
UnderWar on Undertale-AUs-United - DeviantArt
The feeling of being trapped underwater by DR34M-D4NC3R on DeviantArt
Sans - TheDepressedSans - Wattpad
UnderWar on Undertale-AU-Growth - DeviantArt
Sans underswap Stories - Wattpad
THE SANS - Underwar - Wattpad
THE SANS - UNDERTALE - Wattpad
Another Sans AU design by VioletLauren on DeviantArt, sans aus fanart
INSANITY! Tale, Undertale AU Wiki