A Hero and the sister of Yuki Nonaka. She is also an Element Master. Kurumi is a petite young girl who is surprisingly developed for her age. She has blue violet hair held up in a ponytail by a white scrunchy and yellow eyes like her sister. Her battle outfit tightly wraps around her slim figure and is the typical attire for female Heroes which is a navy blue leotard with a black collar and a white skirt. Kurumi chooses to wear short tights underneath and her limbs are covered by her Spirit Armor with her Spirit Gauntlet on her left hand.