Midori Yamabuki teaches at Penguin Village Middle School, initially encountered during enrollment procedures involving inventor Senbei Norimaki and his android daughter Arale. She possesses distinctive big curly blonde hair and often wears a pink dress, bearing a notable resemblance to another character, Akane, which results in impersonation pranks. As a dedicated educator, she demonstrates kindness toward students but exhibits occasional anger, particularly when disciplining individuals like Taro Soramame for smoking in school halls. Her background includes an unusual childhood incident during a family trip to an amusement park, depicted in the film *Dr. Slump: Hoyoyo! Space Adventure*, where she accidentally boarded an alien spacecraft. Adopted by the childless royal couple of Planet Takeya-Saodake, she returned to Earth after her biological parents were located, promising to assume the throne if needed. Romantic involvement with Senbei Norimaki developed from his persistent yet initially unsuccessful attempts to court her. Their relationship culminated unexpectedly when Senbei jokingly proposed near a bathroom, unaware Midori was listening. She immediately accepted, motivated by eagerness to marry, and wed shortly afterward, changing her surname to Norimaki and integrating her into Senbei's household. Post-marriage, her personality showed increased scatterbrained tendencies. The couple later had two children: Turbo Norimaki, who gained psychic abilities after an alien spacecraft collision, and Nitro Norimaki, born during the events of the sequel manga *The Brief Return of Dr. Slump*. Midori appears in *Dragon Ball* crossovers. During the Red Ribbon Army Saga, she hosted Son Goku in Penguin Village, provided him cookies while he repaired his Dragon Radar with Senbei's help, and witnessed Arale defeat General Blue. Decades later, in *Dragon Ball Super*'s "Future" Trunks Saga, she appeared unchanged in age while shopping with Turbo, consistent with Penguin Village's ageless residents. Her character design originally drew inspiration from Marilyn Monroe, later revised to resemble Jodie Foster in the 1997 anime adaptation. The name "Midori" references the host of the Japanese version of *Romper Room*, aligning with her teaching profession.