Midori Yamabuki, later Midori Norimaki, is a dedicated middle school teacher in Penguin Village, first mentoring Arale Norimaki before becoming central to Senbei Norimaki’s comedic romantic pursuits. Their relationship culminates in marriage, positioning her as Arale’s adoptive mother. Sporting curly blonde hair, her striking resemblance to Akane Kimidori sparks collaborative pranks, including a scheme to cheat in the Penguin Village Grand Prix by exploiting their mirrored looks.

Her past unfolds in *Dr. Slump: Hoyoyo! Space Adventure*, revealing a childhood accident aboard a royal spaceship during a Metropolis Island trip. Transported to Planet Takeya-Saodake, she was raised by its childless monarchs before returning to Earth, though her pledge to inherit their throne if needed lingers, anchoring her extraterrestrial ties and sporadic cosmic escapades.

Warm and committed as an educator, Midori occasionally reveals fiery outbursts and flightiness post-marriage. Her bond with Senbei evolves through absurd mishaps, such as his bathroom-echoed proposal leading to a whirlwind wedding. Their family grows with Turbo, a psychic child born after an alien craft’s interference, and Nitro, introduced in *The Brief Return of Dr. Slump*.

Crossing into the *Dragon Ball* universe, she aids Goku with cookies and observes Arale’s victory over General Blue. Like all Penguin Village residents, she defies aging in *Dragon Ball Super*, her appearance static over decades.

Adaptations reshape her design: her original blonde, Marilyn Monroe-inspired look shifts to brown-haired Jodie Foster echoes in the 1997 *Dr. Slump* remake, which accelerates her marriage to Senbei. Video games and spin-offs preserve her essence while weaving her into varied narratives.