Shougo Yahagi is a young motorcycle enthusiast living in a world of hot bikes, hard rock, and J-pop idols. The general populace go about their lives in peace, under the watchful eyes of a computer program in the guise of pop idol sensation Eve, unbeknownst to them. Shougo himself is mostly concerned with riding his motorcycle and picking up beautiful women like Yui Takanaka, who aspires to be a dancer. Shougo's life suddenly changes when his friend, Shinji Nakagawa, shows him a top-secret project: the "Garland," an advanced motorcycle that can transform into a robot. Ambushed by the military, Shougo hijacks the Garland and escapes into the city. Evading the military with the help of Yui and her friends, he gradually discovers that their idyllic society is only an illusion. [Written by MAL Rewrite]

Jouji Gouda is a new transfer student at Hakuryo High. He fell in love at first sight and boldly proposed to Akane Suzumiya, representative of his class, on his first day at the new school. Although Akane finds him very annoying, hot-blooded and simple-minded Jouji never gives up and would do anything to express his love towards Akane.

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)