Special episodes that take place between episodes 10 & 11 of the TV series.

Each episode centers on Nuku Nuku's adventures and mishaps in high school, and her relationship to students, the overall series plot centers on the evil Mishima Industries' scheme to dominate the world through its products. In opposition to this plan are the slightly nutty Kyuusaku Natsume and Nuku Nuku, the android who acts as a companion to his young son. Nuku Nuku's classmates are all eccentrics, Futaba, the class president, is a domineering control-freak, who cannot leave her authority in school. Chieko Shirakaba is the rich snob with the two yes-girls who always take her side. There is a bookworm, a mystic, a scientist, and a pop singer. All of these are true to their descriptions: the mystic is always foretelling doom via tarot cards, spirits, or some other occult technique. The pop singer never says anything except as a song. The bookworm always has her nose in a book. These eccentricities add to the series' humor. (Source: ANN)

These events occur in Westland, New York, during the 21st century. With a sharp knife, a murderer is indiscriminately killing people… A girl witnesses one of these murders, and the knife is turned on the helpless girl shaking with fear. Meg returns to this town with Joe to celebrate the “birthday” of Shirley, who used to live with Meg. Orphans, they had decided that the day they first met would be her birthday. In the past, Meg had taken care of three little children, including Shirley, just before meeting Joe. The children were then adopted by a police officer, Sam. He possessed a strong sense of justice and they are supposedly living happily together now. Meg and Joe happen to help a person and receive a reward. They buy a present for Shirley with the reward money and go to meet Sam. However, they notice him acting strangely. Upon questioning him, he explains that Shirley was assaulted by a murderer and seriously injured. Joe says to the grieving and angry Meg, “Let's exact revenge on the murderer for Shirley.” However, the murderer gradually approaches them from behind. The cruel black eyes fall on Meg and Joe… To make matters worse, a dark plot casts its shadow over Meg, Joe, Sam, and the whole town. (Source: AnimeNfo)

Ryuunosuke Natsume is the son of genius inventor Kyusaku Natsume and overbearing Akiko Natsume, CEO of Mishima Heavy Industries. Using funds from his wife's company and the brain from his son's beloved cat, Kyusaku creates a revolutionary android called Atsuko Nuku Nuku Natsume. To Kyusaku's disgust, Akiko wants to use her husband's technology to create weaponized robots for her company's customers, resulting in Ryuunosuke getting caught within the explosive fights between his parents The android Nuku Nuku tries to live as a normal high school student, adopting the role of Ryuunosuke's elder sister, but usually ends up acting as her family's protector. Nuku Nuku will do anything to protect the ones she loves.