Koko has a lean build and tall stature with wavy black hair fashioned in a death hawk style combed to the right, leaving the left side of his head trimmed and split in equal furrows. He has brown almond-shaped eyes in black irises He has thin arch eyebrowsand fair skin. Koko also wears a golden dangling earring on his right earlobe. Hajime is a cold and calculated individual who is willing to do whatever it takes to achieve his goals, and he has a reputation for being ruthless and unforgiving.