During the feudal era of Japan, Kage no Yōkai was a revered samurai, renowned for his unmatched skill and unwavering code of bushido. One fateful night, during a powerful event, he encountered a Yautja Predator who had come to Earth seeking worthy prey. In the ensuing battle, Kage no Yōkai fought valiantly but was ultimately overpowered. Instead of killing him, the Predator recognized the samurai's honor and prowess, choosing to spare him and learn his advanced technology.