Keika is a 25-years old women and the sole daughter to 9-dan Kousuke Kiyotaki, who has managed to challenge the Meijin twice in the ranking battle. Losing her mother when she was little, Keika lived alone with her father before he took Yaichi and Ginko as disciples. Keika has earned the place of being the household’s older sister, treating Yaichi and Ginko as if they were her own siblings and often brushing off Yaichi’s advances on her. Keika isn’t as bright as the two in regards to shogi. In fact, she didn’t even like shogi at first. While she was taught by her father when she was a child, she ended up hating shogi and stopped playing. She returned to shogi on her third year of high school, officially becoming Yaichi and Ginko’s younger sister disciple. Despite her attempt to become a female pro, she has been suffering from the failure to achieve a promotion into class C1 in the Research Group as the age limit approaches. It’s hardly a pleasant situation since her sister and brother are far ahead of her.