"Neko Neko Nihonshi" is a short-form anime series that presents Japanese history through a comedic and anthropomorphic lens, featuring cats as the central characters. The narrative reimagines historical figures and events from Japan's past, transforming them into feline counterparts who engage in humorous and exaggerated retellings of significant moments in the country's history. Each episode is brief, typically lasting a few minutes, and focuses on a specific historical period, event, or figure, offering a lighthearted and accessible introduction to Japanese history.

The series spans a wide range of historical eras, from ancient times to the modern era, covering key figures such as Oda Nobunaga, Tokugawa Ieyasu, and Sakamoto Ryoma, all depicted as cats. The anthropomorphic portrayal of these characters adds a whimsical touch, making the historical content more engaging for a younger audience or those unfamiliar with Japanese history. The cats retain the personalities and traits associated with their human counterparts, blending historical accuracy with comedic exaggeration.

The plot structure is episodic, with each segment focusing on a self-contained story or event. For example, one episode might depict the Battle of Sekigahara with cat samurai strategizing and clashing in a playful manner, while another might explore the Meiji Restoration through the lens of feline reformers. The series balances humor with educational content, often incorporating puns, visual gags, and slapstick comedy to entertain while subtly conveying historical facts.

Main characters include notable historical figures reimagined as cats, such as Nobunyaga (based on Oda Nobunaga), a bold and ambitious warlord cat; Ieyasu (based on Tokugawa Ieyasu), a cautious and strategic feline; and Ryoma (based on Sakamoto Ryoma), a progressive and idealistic cat revolutionary. These characters interact in ways that mirror their historical roles, but their feline traits and comedic antics add a layer of absurdity to the storytelling.

The series does not aim for deep historical analysis or strict accuracy but instead provides a playful and entertaining overview of Japanese history. Its brevity and humor make it an accessible entry point for viewers interested in learning about Japan's past in a fun and unconventional format. The anthropomorphic approach and episodic structure ensure that each episode is self-contained, allowing viewers to enjoy the series in any order without needing prior knowledge of Japanese history.