Underfell Sans plushie

Underfell Sans plushie was not mentioned in many places, Only place he was mentioned (or even talked about) in was TylerAK412's Twitter, But he has been confirmed by TylerAK412 to act very heartless, Kind of like the original UF Sans, And still is addicted to mustard.The picture in the Infobox is of Tyler holding UF Sans, It was taken from Tyler's Twitter when he transferred the photo from the black computer to the red one through an empty Gmail group.

Update (Personality): He sometimes can be quoted saying "Where's my mustard?!" And appears to only care about the Underfell characters. even HE thinks he is edgy.