Hiro is a young boy, he is 1.52cm tall and slim with fair skin, brown eyes and messy black hair. His eyelashes and eyebrows are somewhat thick, and his eyes are rounded almond shaped. When he smiles or opens his mouth, a gap in his teeth may be noted along with a slight overbite. He is often seen wearing a blue hooded jacket, a red shirt with a humanoid robot on it, dark beige capri pants, and brown sneakers with yellow laces. intelligent, arrogant, shy and compassionate