Kurumi is "a girl with astonishing beauty" as described by Shido Itsuka. She appears to be elegant and has very polite manners. She has pearly skin and long, black hair usually tied in long twin tails. Her right eye is red-tinted while her left eye appears as a golden, inorganic clock face, which is covered by her bangs and only revealed when she transforms into her Spirit form. When the hands of the clock eye are not in motion, it typically rests in the 3 o'clock position. Five years ago, Kurumi once wore an eyepatch to conceal her clock-like left eye, though she now considers it shameful and covers the eye with her hair instead. As a human, and after being sealed, her left eye is identical to her right. As a college student, she begins to wear earrings. Her hair is now partially tied back with a red ribbon, no longer covering her left eye. Kurumi's Astral Dress is made out of crimson and black frills, giving her the appearance of an elegant Gothic Lolita with uneven twin tails that emulate the minute and hour hand of a clock.[6] On her head, she usually wears a big crimson net bow to hold her hair. She also wears a red and black collar on her neck. After absorbing Nia's Sephira Crystal, her Astral Dress gains several crosses reminiscent of Nia's nun-like Astral Dress. Kurumi's height is stated to be 157cm, and her three sizes are B85/W59/H87. When not in her Spirit form, Kurumi usually tends to wear either the female winter uniform of Raizen High School or a monotone black Gothic Lolita dress.