Underswap Sans, ULCFan Wiki

Underswap is an AU where many of the characters' roles are swapped, as well as their personalities, though some quirks tend to stick in places, or are modified. Sans is the excitable, confident, extremely optimistic human hunter, while Papyrus is the laid back, protective bro following Chara

Underswap Sans, Wiki

Underswap Sans, Wiki

ULC] M87 Sans Sneak Peek

Underswap Sans (Canon), Wiki

Underswap Sans (Canon), Wiki

FW!UNDERSWAP SANS (OFFICIAL BIO), Wiki

ULCFan Wiki

Underswap Sans (Canon), Wiki

Horror Sans, ULCFan Wiki

Sans, TS!Underswap Wiki

Horror Sans, ULCFan Wiki

Underswap Cast by flambeworm370 on DeviantArt

Sans, TS!Underswap Wiki

Underswap, Underswap Wikia

And here's my first Underswap!Sans by GamingInGreen13 on DeviantArt