Keiko Yamada (山田 啓子, Yamada Keiko) is the sister of Shūichi Yamada.
In the Monster Raban, she was named Keiko Ikawa (伊川 啓子, Ikawa Keiko), the sister of Jirō Ikawa who played the role of Murao Hanaoka and Shūichi Yamada in the Hakaba Kitarō and the GeGeGe no Kitarō franchises.
Appearance[]
Personality[]
Unlike his brother, she is very self-less, polite, and kind.