Himawari Nohara, born September 27, 1996, is the infant daughter of the Nohara family. Her name, meaning "sunflower" in Japanese, originated from a viewer contest with over 100,000 entries and influences the floral designs on her clothing and toys. Non-verbal throughout the series, her thoughts appear exclusively through subtitles. She displays a precocious, vibrant personality with a marked attraction to shiny objects, jewelry, and brand-name items, including the ability to differentiate authentic valuables from fakes. This mirrors her persistent fascination with handsome young men, echoing her mother’s tendencies. Her mischievous energy emerges in rapid crawling that exhausts her older brother and playful interactions with the family dog, Shiro. She shares her brother’s signature sideways smile and dislike of onions. Within the family, she embodies adoration and unintentional chaos, creating disruptions through innocent antics devoid of malice. Special manga chapters depict her at age five as equally playful and troublesome as her brother, causing significant upheaval. External relationships include Masao Sato, who sees her as a sister figure, and Toru Kazama, who imagines a future marriage with her. Future narratives explore her adulthood. At age 20 in "Super-Dimension! The Storm Called My Bride," she works as a police officer, retaining her characteristic expressions around attractive men, though occasionally neglecting family visits despite her helping profession. Film roles vary: The 20th film, "Fierceness That Invites Storm! Me and the Space Princess," centers on an alien prophecy declaring her a princess destined to rule their sunflower-themed planet, citing her name and birth during a rare planetary alignment. Her forced separation from the family fuels the emotional plot, resolving with reconciliation and her first subtitled words to her brother. In the 25th film, "Invasion!! Alien Shiriri," she joins a Japan-wide adventure after an alien accidentally reverts her parents to children, though her involvement remains secondary to the core storyline.