Runa Yomozuki is a member of the Student Council and also a leader of the Election Committee, serving as a referee during election gambling matches.
Runa is a girl of a very small posture, looking rather youthful in comparison with other members of the Student Council. She possesses quite light complexion, purple eyes and long platinum blonde hair with short bangs, split in the middle of her forehead. She wears an orange rabbit hoodie over the Hyakkaou Private Academy issued uniform; a red blazer with black trim lining the cuffs and collar, a white button up dress shirt, a dark pleated skirt, a tie and white black striped stockings. As well as the academy's issued footwear, brown colored loafers with black soles. She has light pink painted fingernails and is often being seen with a lollipop in her mouth.
Runa is mostly seen as a very cheerful, enthusiastic and kind of charismatic person. However, despite looking friendly and innocent, Runa is just as power-hungry and calculated person as any other students in the academy. She seems to enjoy the infamous house pet system, mocking Mary Saotome when she confronted her over the case of her Life Schedule, telling her that she needs to boost her skills in pleasing guys. Runa seems to be the only member of the Student Council who has good relationship with the Student Council President, as Kirari is treating her with much respect. Her reactions and actions when Midari Ikishima picked out her own eye, and during match between Mary, Ryota Suzui, Miyo Inbami and Miri Yobami, shows that she might have no regards of humans life just like Kirari, making her a psychopathic and sadistic individual.
Kakegurui - Compulsive Gambler
She is often seen alongside the president, managing stuff. Most of the time she makes a quirky remark or joke about the situation. During the Tarot game, she also acts as the dealer. Later she calls Ririka, telling her the recent events.
Runa acts as head of the Election Committee. She is also present as the dealer during the Nim Type zero game with Yumeko and the others. She doesn't trust Miyo, especially after she had beaten Yuriko. Runa shows content, with Mary tricking Miyo later. She also moderates the broadcasts of the election. She was also leading the battle between Yumemi and Kawaru. She was the dealer for the third round.