All Purpose Cultural Cat Girl
Cat Girl Nuku Nuku is the story of a custody battle gone terribly wrong. Nuku Nuku is a robotic girl with the brain of a cat. The man who created her is in the middle of a heated custody battle with his ex-wife over their son. I got the impression she was created to protect him...but that might not be the case.
Ryuunosuke, the little boy in the middle of all this, doesn't really like his mom any more than his dad does because she's a psychopath. While Ryuu's father, Kyuusake, is willing to do just about anything to get on his ex's nerves, Akiko (the ex) is in to heavy militia as a method of persuation and harrassment.