Chihiro appears to be a young high school-aged teenager, but due to the memory loss, he is two years older than he believed. He has a small, lithe stature and doll-like appearance with short, light brown layered hair and hazel-colored eyes. He's 4'10. He is the Ultimate Programmer. Everyone thinks he's a girl because of how he dresses. He has an Ai daughter called Chiaki, an Ai son called Alter ego, and a robot daughter called Usami that looks like Monokuma but pink.