

Although she has been training in kendo, which emphasizes obtaining self-control as with most other forms of martial arts, she mainly uses it as a way to let out her frustration, making her very brutal towards her opponents.

However, as a result of this separation, Houki has a serious emotional problem. After being forced to move away from Ichika, Houki continued practicing kendo, as it was the only connection she had left with him. Since her place of residence is a kendo dojo, Houki had been interested in kendo ever since she was young. Even as a child, Houki had trouble expressing her feelings for Ichika, and shortly after they first met, she asked him to use her first name, but then she justified it by saying that there were three other Shinononos (her father, her mother, and her sister). Ichika thought of Houki as a cute girl, and he helped her out by chasing the bullies away whenever they mocked her. As such, she had a hard time socializing with other people, so she had virtually no friends, with the exception of Ichika. Having been raised in a shrine/dojo, Houki possesses a stern, disciplined personality. Her IS standby mode has a form of white and gold bells on her wrist Her initial IS training uniform matched the standard ones worn by all other female students, but after gaining Akatsubaki, she changed into one (a uniform) that is predominantly white with a black neckline, and black edges on the legs. After the battle with the Silver Gospel, she replaces her green ribbon with a red-black-and-white ribbon that Ichika bought her for her birthday. She usually wears her IS Academy uniform modified with high white stockings and black knee-high boots that have white soles.

Houki is a beautiful teenage girl of average height (but taller shape) with long dark brown hair that she keeps in a slightly messy ponytail (that seems to be divided into two sections in the middle to the end) with a green and black ribbon, dark blue eyes and a slim, curvaceous body with no trace of fat on her and large breasts (which are still growing ). 5.7 Episode 7: "Blue Days ~ Red Switch".5.6 Episode 6: "My Roommate is a Young, Blonde Nobleman".5.4 Episode 4: "Showdown! The Class League Match".5.3 Episode 3: " The Transfer Student is my Second Childhood Friend".5.2 Episode 2: "Class Representative Runoff!".5.1 Episode 1: "My Classmates are All Girls".
