The Special One is a minor character in Don't Hug Me I'm Scared 3.
In Don't Hug Me I'm Scared 3, Shrignold tells The Yellow Guy that he should save his love for his "Special One". Yellow Guy dreams of a female version of himself, also a puppet with a resemblance of a human. There is not very much information on this character. Yellow Guy's Special One only has one line.
"And our love will never go!"