|Family and Relations||Kito (Older Brother)|
|Voice Actor||Reiko Katsura|
|First Appearance||Mazinger Z episode 51|
Ayuko is kind hearted, looking out for her brother Kito, assuring him not to worry about her too much.
Ayuko was involved in an accident that caused an injured leg. The injury was severe and Ayuko may not be able to walk again without expensive treatment. Her brother Kito tried to get the money from a bounty on Koji Kabuto's head but later went to get it from other menial jobs after seeing Koji and Mazinger Z in action.