Season 1

1992 · 6 episodes · 2h 49m in all

When Ryunosuke's pet cat dies in an accident, his inventor father "resurrects" the cat by placing its brain in an android body made in the form of a young girl. The Android, Nukunuku, has the dual purposes of being a companion/sister for Ryunosuke as well as being a bodyguard for his father. Nukunuku's extreme strength and feline agility are regularly needed to protect Ryunosuke and his father from Ryunusuke's mother who seeks to kidnap them both following her divorce from his father. Her motives towards Ryunusuke are simple motherly love, however her genius-inventor-ex-husband she wants to put to work designing weapons of mass destruction for her weapons company.

1. Phase-01
21 Oct 1992 · 28 min
When Ryunosuke's pet cat dies in an accident, his inventor father "resurrects" the cat by placing its brain in an android body made in the form of a young girl. The Android, Nukunuku, has the dual purposes of being a companion/sister for Ryunosuke as well as being a bodyguard for his father.
2. Phase-02
24 Dec 1992 · 28 min
Nuku, Ryunosuke, and Yoshimi decide to go to the beach on a hot day, but Akiko has plans to brainwash Yoshimi to get to Ryunosuke.
3. Phase-03
24 Mar 1993 · 28 min
The Natsume family moves back together in the Mishima Manson under the condition that Akiko takes on all the duties of a regular mother and wife. She discovers that because of all the work she has to do she hardly sees Ryunosuke any more than before, so she plots revenge on Kyusaku for 'tricking' her.
4. Phase-04
22 Dec 1993 · 29 min
A young girl named Eimi is found in the remains of a crashed ship after escaping from Mishima Industries.
5. Phase-05
24 Mar 1994 · 28 min
Nuku gets a job at a local restaurant to pay for a new bike for Ryunosuke.
6. Phase-06
25 May 1994 · 28 min
A new Mishima satellite weapon has accidently been set to kill Akiko, So she enlists the help to Nuku and Eimi to disable the satellite.