And then he can begin inquiring into their true names. It seems just crazy enough to be true and if it is true, does one lead them or are they more of a cohesive unit? Let's say they do have a leader and there is one Joker that reigns supreme.
Many comics have said that Sans is the older brother... But I haven't gotten any proof yet. It makes sense that Sans could be the older brother... But it makes just as much sense that Papyrus could be the older brother.
Blue eye on the left and yellow star on the right (however, his eyes change color and shape every time he blinks) Ink Sans is a Sans who exists outside of timelines to help aid artists in the creations of new AUs, he is capable of drawing everything and bringing it to life (outside of already deceased people). He was made by Tumblr user, Comyet. Sans lives off the creativity of artists, and lives outside the timeline. He supports artists to create new AUs and keep adding art to the fandom as long as he can. Also, he is the Protector of the Imagination and of AU's.