Lord Death's son from the anime Soul Eater
. He weilds twin pistols as weapons and is obsessed with symmetry, believing everything in the world should have a perfect balance between left and right, despite three white stripes called Sanzu Lines on the left side of his head, which he despises and cannot dye, due to the fact they are magic. He is unable to weild only one of his pistols, with the mindset of needing perfect symmetry, this is displayed in one of the episodes where Kid refuses to weild the younger sister, Patty, because it would disrupt his balance.
Soul: Well if you came at 7 like you were supossed to, you could have looked around yourself.
Death the Kid: 7? Did you say 7?
Soul: Yeah, what about it?
Kid: *snaps* MAKE IT 8 DAMMIT! 8 IS BETTER!
Kid: THERE IS NO PHYSICAL WAY TO DIVIDE SEVEN IN HALF, EIGHT HAS PERFECT SYMMETRY!!!!