Rin is a tall women with a slim but powerful build. She is noticeably taller than Yoichi Isagi who is a year older than her. She has dark green hair with a bang going across her face more in her right eye than left eye, slim teal eyes, and distinct eyelashes that he shares with his brother Sae Itoshi. As a young girl, Rin looks largely the same, his facial features just become more distinct as she gets older.