Nuku Nuku's just transferred into Manekigaoka Academy with strict instructions from her creator, Kyusaku Natsume, not to let it slip that she's an Androbot.

Nuku Nuku is now the most popular girl in class! Her classmates all try to get her to join their clubs. But when she accidentally pushes a big red button and activates a giant haniwa robot, she has to save them a second time... with the help of power armor supplied by the mysterious "Mr. Q".

Non's mother has to go on a trip, so she leaves the lovesick girl at the Natsume house for the night.

Mishima Industries holds a karaoke competition and Nuku Nuku's classmates invite her to sing.

Futaba has been acting odd lately, and Nuku Nuku wants to find out why; when Futaba's crush sells her a hypnotic book of poetry.

The Natsume family heads to the beach to investigate a underwater Mishima base. Kyusaku gets captured while sneaking into the base, but Nuku Nuku can't swim! This time it's her classmates who come to the rescue. Can they defeat the Speedy Girls and their supernatural powers?