A talking, pervy owl that accompanies Sho on his journeys. Hosuke followed Sho during a prison break attempt to rescue Sho, Makoto, and Kakeru. After Sho had defeated his father, it was revealed that Hosuke is Yuki's grandfather disguised as an owl. After his brother Takeshi had been transported to Earth, Hosuke became the king of X-Zone. However, time moves much faster in X-Zone than it is on Earth, so Hosuke became an old man when Takeshi finally returned to X-Zone. Plotting to stop the ancient evil, Hosuke secretly became the talking owl, but without the memory of his former identity until he returned to his human form. In the end, Hosuke managed to help Sho get to Earth.