"Kenda Master Ken" is an anime series that centers on Ken, a young martial artist who embarks on a journey to master the ancient and revered art of Kenda, a unique fighting style that combines physical combat with spiritual energy. The narrative begins in a small village where Ken trains under his mentor, an elderly Kenda master who imparts the foundational techniques and philosophies of the discipline. After a tragic attack by a rogue faction seeking to exploit Kenda's power for destructive purposes, Ken's mentor is killed, and the village is left in ruins. This event propels Ken into a quest for vengeance and self-discovery, as he vows to honor his mentor's teachings and protect the legacy of Kenda.

Throughout the series, Ken travels across diverse landscapes, encountering allies and adversaries who shape his growth as a warrior. Among these characters is Aya, a skilled fighter with her own tragic past, who becomes Ken's closest companion and confidante. Together, they face off against the rogue faction led by Kuro, a former Kenda practitioner who has abandoned the art's principles in pursuit of ultimate power. Kuro's ambition to harness Kenda's energy for domination drives much of the conflict, creating a central antagonistic force that challenges Ken at every turn.

The plot is structured around Ken's progression through various trials, each designed to test his physical prowess, mental resilience, and spiritual alignment. These trials often involve battles against formidable opponents, including members of Kuro's faction and other rogue martial artists. As Ken grows stronger, he uncovers deeper truths about Kenda's origins, revealing its connection to an ancient civilization and its potential to bring balance or chaos to the world. The series explores themes of discipline, sacrifice, and the moral responsibilities that come with wielding great power.

Supporting characters, such as the wise hermit Ryu and the enigmatic warrior Kaida, provide additional layers to the story, offering guidance and challenges that further Ken's development. The narrative builds toward a climactic confrontation between Ken and Kuro, where the fate of Kenda and its legacy hangs in the balance. The resolution of this conflict underscores the series' emphasis on the importance of upholding principles and the enduring impact of one's choices.