"Moeyo Ken" is a historical fantasy anime set in the late 19th century during Japan's Meiji Restoration, blending elements of action, comedy, and supernatural themes. The narrative centers around the Shinsengumi, a group of samurai tasked with maintaining order in Kyoto during a period of political upheaval. However, the series takes a creative twist by reimagining the Shinsengumi as an all-female squad, led by the determined and skilled Toshizou Hijikata. The group is tasked with combating supernatural threats, including vengeful spirits and demons, while navigating the complexities of their historical roles.

The plot unfolds as the Shinsengumi faces a series of mysterious incidents tied to the resurgence of malevolent spirits. These spirits are often linked to the lingering grievances of the past, reflecting the turmoil of the era. The team employs both traditional samurai techniques and supernatural abilities to confront these threats, with each member contributing unique skills and personalities. Key characters include the stoic and disciplined Hijikata, the fiery and impulsive Okita Souji, and the enigmatic Saitou Hajime, among others. Their interactions balance moments of camaraderie and tension, adding depth to their dynamic as a team.

As the story progresses, the Shinsengumi uncovers a larger conspiracy involving powerful entities seeking to exploit the chaos of the Meiji era for their own gain. The series explores themes of loyalty, duty, and the clash between tradition and modernity, all while maintaining a lighthearted tone through its comedic elements. The blend of historical context with supernatural action creates a distinctive narrative that appeals to fans of both genres. The anime concludes with the Shinsengumi reaffirming their commitment to protecting Kyoto, leaving room for further adventures while resolving the immediate threats they face.