"Oita ga Sugiruwa Koneko-chan" centers on the daily life of a small, overly enthusiastic kitten named Koneko-chan, whose boundless energy and curiosity often lead to humorous and heartwarming situations. The narrative unfolds in a cozy, domestic setting, primarily within the home of Koneko-chan’s owner, a young woman who provides a nurturing yet occasionally exasperated presence. Koneko-chan’s antics are driven by an insatiable desire to explore and interact with her surroundings, whether it’s chasing after household objects, attempting to mimic human behaviors, or engaging with other pets in the neighborhood.

The plot is episodic, with each chapter presenting self-contained scenarios that highlight Koneko-chan’s playful and mischievous nature. These vignettes often emphasize the contrast between her tiny size and her larger-than-life personality, creating a blend of comedy and charm. The interactions between Koneko-chan and her owner form the emotional core of the series, showcasing a dynamic that oscillates between endearing moments of affection and lighthearted frustration.

Supporting characters include other animals, such as a reserved older cat and a boisterous dog, who serve as foils to Koneko-chan’s exuberance. These characters add variety to the narrative, offering different perspectives on her antics and occasionally joining in her adventures. The series maintains a gentle, slice-of-life tone, focusing on the small joys and challenges of living with a spirited kitten. Through its simple yet engaging storytelling, "Oita ga Sugiruwa Koneko-chan" captures the essence of feline behavior and the unique bond between pets and their owners.