Shinnosuke Nohara, universally known as Shin-chan, is a five-year-old kindergarten boy living in Kasukabe, Japan. His signature look features a red shirt, yellow shorts, and distinctively sharp black hair and eyebrows mirroring his father Hiroshi's, while his facial structure and stubborn streak strongly reflect his mother Misae. Shin-chan possesses an intense curiosity, a complete lack of shame, and brutal honesty, frequently resulting in socially awkward moments like performing his "buri buri" dance—waggling his bare bottom while singing original tunes such as "Buttock Alien." Despite his mischievous and often lazy nature, he unexpectedly displays maturity through philosophical insights and surprising proficiency in activities like surfing, kendo, and skiing. His chaotic actions often unintentionally resolve problems. Recurring habits include mangling language (saying "promotion" for "promise" or mixing greetings like "okonban gozaimasu"), dressing in animal costumes or drag, and mimicking adult behaviors such as sighing "Paradise, Paradise" while bathing. His passions include fervent admiration for the superhero Action Mask, whose show he watches religiously at 5 PM. He adores chocolate corn biscuits (Chocobi) but despises green peppers and onions. He harbors romantic interests exclusively in women over 15, particularly college student Nanako Oohara, whom he tries to impress with uncharacteristically courteous manners. His signature pickup lines involve food questions like "Do you like green peppers?" or "Hey baby, you like onions?" Family life is close-knit despite constant teasing. He shares his father Hiroshi's habit of flirting with women, leading to shared punishments from Misae. Though initially resentful of his baby sister Himawari's arrival, he grew protective, calming her with photos of handsome men. He rescued the family dog Shiro from the street but consistently neglects walking or feeding him. In *Arashi o Yobu Jungle*, his traits intensify during a cruise to meet Action Mask's actor. When monkeys abduct all adults, he leads his friends and Himawari on a rescue mission against the antagonist Paradise King. This adventure reveals his resourcefulness and courage, including impersonating Paradise King to liberate the monkeys and aiding Action Kamen in defeating the villain. It highlights his leadership within the Kasukabe Defense Force (KB) and deep loyalty. His origins trace back to Yoshito Usui's earlier character Shinnosuke Nikaido in *Darakuya Store Monogatari*, not real-life events as some legends claim. Shin-chan embodies a child challenging societal norms with an "adult's view." Future depictions, like a 2025 live-action commercial, show him at 25 working at an Action Mask show, maturing while retaining core passions. Beyond family, key relationships are with his KB teammates: the intelligent Toru Kazama (his closest friend, addressed by surname), Nene Sakurada, Masao Sato, and Bo Suzuki. He shows deep, if peculiar, care for them, like comforting a distressed Toru or chasing his departing train. His antics often frustrate adults like teachers or shopkeepers, yet underlying kindness surfaces in acts like giving money to a friend despite expecting punishment.