Kurumu Kurono is a Succubus and a third year student at Yōkai Academy where one of her goals was to take Tsukune Aono from Moka Akashiya. Despite her numerous sexual advances towards Tsukune, in actuality, Kurumu is a very innocent character and genuinely yearns for Tsukune's love. Kurumu is actually a very innocent character compared to Ageha Kurono (Kurumu's mother) who is a sexual deviant who plans to steal all men with her kiss in a way. Kurumu used to be like that, until one fortune day, when she met Tsukune and Moka, that all changed through Tsukune's saving her life from Inner Moka. Almost the literal spitting image of Ageha Kurono (Kurumu's mother), Kurumu has shoulder-length light ocean blue hair that is tied in a ponytail with a purple maid headband that has one gold star on the left side, deep purple eyes, thick long black eyelashes and large breasts, in which she takes great pride in her big chest. Despite her soft, massive and bouncy breasts, she is also quite small as she is only five feet tall. She wears an almost-plain long-sleeved white polo shirt with a red bow tie, plus a pale yellow colored vest and a miniskirt that looks exactly like the school's uniform skirt. Kurumu also wears white baggy seifuku sailor fuku schoolgirl uniform socks and plain black dress shoes. In the manga, she changes her outfit from long-sleeved to short-sleeved in more of a t-shirt form and wears a much straighter look for her hair by Season II, as in Season I, she has curlier hair and long sleeves for her basic, everyday attire. The main difference that sets her appearance and her mother's apart is that Kurumu has much straighter and shorter hair (not as wavy or as long) and wears it with a headband over it rather than letting it all down naturally. Despite not wearing the school uniform of a medium-green to bright-green "dress jacket" with a pleated checkered skirt or school-girl skirt matching the male dress pants uniform except for the plaid design, and school girl flat dress shoes, her everyday, signature outfit (top wise) is very school-girl based and her shoes are also very schoolgirl looking. When she transforms into her succubus form, she grows large bat wings and a tail, as well as long fingernails that act as claws. In the Capu 2 version (second season of the anime), she still wears her same undershirt under her yellow vest instead of a short-sleeved white t-shirt made of a similar-looking material. In the anime, in the witch episode version of the Witch Knoll arc, specifically "Sunflowers and a Vampire", Kurumu wears a white short-sleeved blouse with a black ribbon bow as design, and a pleaded checkered plaid schoolgirl mini-skirt and the same shoes. According to the episode, even her toenails can be claw-like razor-sharp and which are red. As a succubus, Kurumu has the ability to easily seduce men. She is well liked by most of the boys in her school, but fell in love with Tsukune Aono when he saved her from an angry Inner Moka. Kurumu initially acts cold and arrogant to attract Tsukune, and later tells him that he is her one true love and will try to make him love her without her succubus power. Kurumu is very confident in her beauty, which she often uses in trying to win Tsukune. She usually teases her love rivals about how she is much more sexy than them. However, she doesn't tease Moka as meanly as the rest, but does push her aside when she is with Tsukune. She is a very cheerful and self confident girl. At a glance, one could get the impression that Kurumu is a childish and selfish person, however, she's actually more mature and kind-hearted than she seems, as she truly cares about her friends and would gladly risk her life for their sake. She is quite stubborn and brave and a loyal person who wants to win Tsukune's love without using her charming skills. When Kokoa Shuzen suggests her to use her succubus powers to claim Tsukune's heart, Kurumu states she will never do something like that- to which Kokoa replies that Kurumu is unusually pure of heart compared to other succubi. This prompts Kurumu to blush heavily, suggesting that when someone notes her pure hearted behavior, she's very shy of it as it is considered unbecoming of a succubus. In the anime, she is a confident singer. Kurumu truly loves not only Tsukune, but also her friends, especially Moka, saying that Tsukune and Moka are her two 'most important people'. Despite competing with her love rivals for Tsukune's affections, she loves them like sisters, especially Moka and Mizore Shirayuki. Kurumu's genuine feelings for her friends is extremely powerful, ranging from kissing Mizore to stop her from suicide, diving into Moka's soul to save Tsukune, Mizore, and Touhou Fuhai, bringing back Tsukune from the back of his mind, and not letting anyone call Moka, their bonds, or their feelings fake. She cannot hate Moka, the only girl Tsukune looks at, wishing multiple times she could, but could never bring herself to do so, well aware that her love is unrequited because of Moka.