"Fuma no Kojirou: Yasha-hen" is a three-episode OVA series that serves as a sequel to the original "Fuma no Kojirou" anime. The story revolves around Kojirou, a young and skilled swordsman from the Fuma clan, who is tasked with protecting the Yasha clan, a group of warriors with supernatural abilities. The Yasha clan is under threat from the Gennosai clan, a rival faction seeking to eliminate them and claim their power. Kojirou’s mission is to ensure the survival of the Yasha clan and prevent the Gennosai from achieving their destructive goals.

The narrative begins with Kojirou arriving at the Yasha clan’s stronghold, where he meets its members, including the enigmatic leader, Yasha. The Yasha clan is composed of warriors who possess unique abilities tied to their spiritual energy, making them formidable opponents. However, the Gennosai clan, led by the ruthless Gennosai, employs dark and sinister techniques to overpower their enemies. The conflict escalates as the Gennosai launch a series of attacks on the Yasha clan, forcing Kojirou to confront their elite fighters in intense battles.

Throughout the series, Kojirou’s swordsmanship and determination are tested as he faces increasingly powerful adversaries. The Yasha clan’s members, including the stoic Yasha and the fierce warrior Ryoma, play crucial roles in the struggle against the Gennosai. The story delves into themes of loyalty, sacrifice, and the clash between traditional martial values and corrupt ambition. The battles are characterized by a mix of physical combat and supernatural elements, with each side employing their unique techniques to gain the upper hand.

As the conflict reaches its climax, Kojirou and the Yasha clan must confront the full might of the Gennosai, leading to a decisive showdown. The series concludes with a resolution that underscores the cost of the struggle and the enduring strength of the Yasha clan’s spirit. "Fuma no Kojirou: Yasha-hen" is a concise yet action-packed continuation of the original story, focusing on the interplay between its central characters and the high-stakes battles that define their world.