Ruki is a 13 year old girl, She has a caucasian skin, purple eyes, and ginger shoulder-length hair worn up in a ponytail held by a blue tie.

She wears a white T-shirt with short turquoise sleeves, a yellow turtleneck, and a dark blue broken heart on the front, with short button-fly blue jeans  red wrist bands, white socks, red steel-toed sneakers, and buckles around her waist and left leg. She usually wears her D-Power and a card case on her belt.