TV-Series
Description
Ogasawara Sadamune is a major antagonist in The Elusive Samurai, a fictionalized portrayal of the historical nobleman and warrior of the same name who lived from 1292 to 1347. In the story he is introduced as an adult samurai of average height who becomes the governor, or shugo, of Shinano province after the fall of the Kamakura shogunate. He originally came from a samurai family of Shinano that had served the shogunate, but he chose to side with Ashikaga Takauji during the rebellion that destroyed the Hōjō regime. His military contributions earned him the governorship of Shinano under Emperor Go-Daigo, and he is subsequently tasked with hunting down surviving members of the Hōjō clan, which places him in direct opposition to the protagonist Tokiyuki Hōjō.

His most striking feature is his large, wide eyes, which give him exceptionally keen vision. He is serious and disciplined by nature, but behaves in an eccentric way because of his habit of bringing his face close to others and fixing his gaze on them while speaking. He is a leader respected by his own people, and he places great importance on honor, disliking humiliation and dishonorable defeat. Although proud and at times petty, he is also courteous and well versed in formal etiquette, reflecting the historical Ogasawara family's role as hereditary masters of ceremony and archery forms.

His motivations center on establishing and securing his authority over Shinano. He regards the Suwa Grand Shrine and its influential priest Suwa Yorishige as the main obstacle to his control of the province, and he repeatedly schemes to seize Suwa territory, at one point obtaining an imperial decree that would transfer the shrine's lands to him. At the same time he pursues his official duty of rooting out Hōjō remnants, which brings him into repeated conflict with Tokiyuki and his companions.

In the story's early Shinano conflicts, Sadamune serves as the closest and most immediate enemy of the Suwa forces. When he visits the Suwa Grand Shrine during his search for fugitives, he faces the disguised Tokiyuki in a dog-hunting archery contest. Although Sadamune is regarded as one of the finest archers of the age, Tokiyuki defeats him by inventing a technique of shooting backward while fleeing, a loss that deeply wounds Sadamune's pride. He withdraws from Suwa for a time but continues to pressure the region through political means until the imperial decree is destroyed through Tokiyuki's efforts. He later learns Tokiyuki's true identity during the Nakasendai Rebellion, and he reappears in later campaigns, including the Battle of Aonogahara and the siege of Daitokuji Castle, when Tokiyuki fights under the northern army of Kitabatake Akiie.

His relationship with Tokiyuki is a complicated rivalry. Sadamune is an enemy who genuinely respects the young lord, treating him as an opponent worthy of his full attention and, in some ways, serving as a harsh teacher. Tokiyuki, who is drawn to Sadamune's skill with the bow, secretly studies his technique, and the confrontations between the two push Tokiyuki to develop his own methods. Sadamune also interacts with a set of subordinates and allies, including Sukefusa Ichikawa, an assistant governor with a keen sense of hearing who behaves toward him with surprising informality, and Shokan, a feared warrior who commands an irregular band called the Seigi Party under Sadamune's orders. His chief political rival within Shinano is Suwa Yorishige, whose authority and holy powers represent the older order that Sadamune's new position challenges.

Over the course of the narrative, Sadamune develops from a haughty and intimidating pursuer into a more layered figure whose sense of honor and respect for worthy opponents becomes increasingly evident. He is shown as a capable administrator and commander who rewards merit and disciplines failure among his men while also displaying moments of earnestness when his formal dignity is tested by those around him.

His notable abilities are closely tied to his eyesight. His unusual eyes grant him unmatched observational power, allowing him to notice extremely small details at great distances, and he combines this with mastery of the bow and horse archery to strike enemies with a single precise shot. He is also a quick and decisive thinker on the battlefield, equally adept at reading a situation and at knowing when to withdraw. His skills become the basis of the Ogasawara school of archery and etiquette, which, in the historical record, he helped establish and pass on to later generations.
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