"Tail of the Moon" is a historical romance manga set in 16th-century Japan, blending elements of comedy, drama, and action. The protagonist, Usagi, is a young woman from the prestigious Hanzo ninja clan, though she lacks the skills expected of a ninja. Despite her clumsiness and inability to master traditional ninja techniques, Usagi is determined to prove her worth. Her family sends her on a mission to marry the clan's strongest ninja, Hanzo Hattori, and bear his child to strengthen their bloodline.

Hanzo, a stoic and skilled ninja, initially dismisses Usagi due to her ineptitude. However, her persistent optimism and unique approach to challenges gradually soften his demeanor. As Usagi navigates her new life, she encounters various obstacles, including rival ninja clans, political intrigue, and personal insecurities. Her journey is marked by growth, as she learns to harness her unconventional talents and discovers her own strength beyond traditional ninja skills.

The narrative explores themes of self-discovery, perseverance, and the importance of individuality. Supporting characters, such as Usagi’s fellow ninja trainees and Hanzo’s allies, add depth to the story, providing both comedic relief and emotional stakes. The manga balances lighthearted moments with serious undertones, reflecting the complexities of life in feudal Japan. Over time, Usagi and Hanzo’s relationship evolves from mutual frustration to genuine affection, showcasing their complementary personalities and shared values.

The story’s historical setting is enriched by its attention to cultural details, including ninja traditions, societal norms, and the political landscape of the Sengoku period. While the manga incorporates fantastical elements for comedic effect, it remains grounded in its exploration of human relationships and personal growth. "Tail of the Moon" offers a blend of romance, humor, and action, appealing to readers interested in historical fiction with a lighthearted twist.