Senbei Norimaki, nicknamed "Dr. Slump" for his erratic inventing skills, is a self-proclaimed genius inventor living in Penguin Village. He created the robot girl Arale after his editor suggested a robotic character, introducing her to villagers as his younger sister or daughter to hide her artificial origins. His early escapades featured comically failed inventions, persistent lecherous behavior toward women—especially Arale’s teacher Midori Yamabuki—and voyeuristic schemes with gadgets like X-ray glasses, which frequently ended with self-inflicted injuries from Midori’s scooter. Senbei’s romantic pursuit of Midori took an abrupt turn when a half-hearted proposal during her bathroom visit led to their sudden marriage. This union shifted his personal life, resulting in their son Turbo’s birth. Despite family obligations, his core traits endured: scientific rivalry with his nemesis Dr. Mashirito—a character directly mirroring his real-life editor—remained a recurring conflict. His parenting blended neglect, like failing to prevent Turbo’s fatal UFO accident, with authentic care for both Turbo and Arale, whom he often treated as a daughter. In later narratives, such as the film *Dr. Slump & Arale-chan Ncha! Wakuwaku Hot Natsu Yasumi*, Senbei vacations with his family at a haunted resort. There, his habitual cowardice and skirt-chasing resurface when encountering the vampire Vandora, revealing minimal growth despite marriage and fatherhood. His scientific pursuits continued yielding impractical inventions—time machines and reality-altering gadgets—that typically malfunctioned or unleashed chaos, only to be inadvertently resolved by Arale. Across the franchise, Senbei transitioned from bachelorhood to family life without fully maturing; future timelines depict him as village mayor while maintaining his perverted habits and professional mediocrity. Spin-offs and crossovers, including appearances in the *Dragon Ball* universe, consistently reinforce his identity as a flawed yet occasionally earnest inventor whose creations—robots, children, or gadgets—repeatedly surpassed his capabilities and oversight.