Keiji is shown to be pretty casual and level-headed during the Death Game, though he comes off as shady to some of the participants. He usually refers to himself as "the friendly policeman" in an effort to establish himself as trustworthy and makes a pretense of being less cunning than he really is. He is calm and nice, very friendly and wants people's trust. Keiji is a tall man with a muscular build. He has short, fluffy, bleached blonde hair and gray eyes with dark circles underneath.