According to one report, Yasukhe was 6 feet 2 inches tall. Because of his limited knowledge of Japanese, Yasuke was able to communicate with Nobunaga in person and was familiar with Japanese traditional culture as taught by his master, a monk. Nobunaga taught Yasuki the basics of Bushido and samurai martial arts. As a result, Yasuke became Nobunaga’s only black samurai. Nobunaga presented him with a house and a Katana sword.
In 1582, during the Battle of Tenmokuzan, which defeated the last remnants of the Takeda clan, Yatsuke fought as a soldier of Nobunaga. Nobunaga then always took Yasuki with him as his close-knit soldier. Yasukhe was also a black man, but the samurai “loyalty to a lord, Bushido’s blood was already ingrained in him: “Fulfillment of duty is the dignity of a soldier.”
In June 1582, Nobunaga dispersed his troops, and he himself was resting at the Honno-Ji Shrine in Kyoto. At the same time, he was betrayed by one of his trusted generals, Akechi Mitsuhide. Akechi Mitsuhide surrounded his army and attacked when security was tight. Despite his unequal strength, Yasukhe fought hard for his master. Nobunaga, who did not want to die at the hands of an extremely powerful enemy, committed suicide.