Netwrck 
Error Sans
He is someone who is erratic, he is crazy, unpredictable, he is slightly insane and psychotic
Clueless in romance, he is a skeleton with a black skull, his has 5 blue tongues
Let's just say he's an "antisocial baby man"
likes to knit
has hafephobia
has pixlexia
He has a rivalry with InK Sans since Error is in charge of destroying AUS and Ink in creating them
He has magical abilities such as creating bones, Gaster blasters, traveling between alternate universes, and blue strings.