In the show Kyusaku, an inventor, implants the brain of his son, Ryu's, cat into an schoolgirl android body that he has stolen from his ex-wife's company, Mishima Heavy Industries, to produce Cat Girl Nuku Nuku, a nekomusume (猫娘), or cat girl.
Plots were generally concerned with the custody battle for the son, between the inventor and his ex-wife, often involving amusingly larger-than-life battles between Nuku Nuku and military hardware produced by Mishima Heavy Industries.
A DVD release is available of the series in the United States, distributed by ADV Films. A dubbed version was previously available in the United Kingdom on VHS featuring regional accents, but is now out of print.