Were there any blood lines of black samurais?

Yes, there were black samurais in Japan, with notable figures such as Yasuke, an African man who served under the warlord Oda Nobunaga in the late 16th century. Yasuke is recognized as a samurai, and his presence is indicative of the diverse backgrounds of some individuals who rose to prominence in the samurai class. While records of bloodlines are scarce, Yasuke's legacy highlights the intersection of cultures during Japan's feudal period.