Jiro has a neck-length black hair with curtain bangs and complete heterochromia; his left eye is green, whilst his right eye is yellow. He has a mole under his left eye, and under the left side of his mouth.

Jiro wears a black t-shirt with two zippers and a blue-and-white bomber jacket with ‘Buster Bros’ labels on the chest. He also wears ripped grey jeans and black sneakers with blue accents. He wears rings on his right index and ring fingers on both hands and on his left thumb.