Ichika describes her friend Keiko as "a proper young lady from a good family, gentle and kind." She is the type who is easily amused by simple things, such as shaking a duster in a sunbeam. Her parents appear to be rather controlling, however, which causes Keiko some distress with regards to a boy she liked.
* Date of birth: 1990-12-09 * Height: 148cm * Blood type: O * Clubs: Baton Club
It seems that the relationship between Keiko and Satsuki are tested throughout the series, and it is implied that Keiko is aware of Satsuki's feelings for her.