Han Kaioh, a martial artist of Chinese origin, bears the distinguished title of Kaiou, signifying mastery within Chinese martial arts. He serves as the older brother of Kaiou Ri and competes with the Chinese team in the Raitai Tournament under the mentorship of Grandmaster Kaiou Kaku. Specializing in Chinese Kenpo, his combat precision manifests in techniques such as his signature kick, capable of cleanly slicing an apple in midair. At the Raitai Tournament, Han Kaioh’s planned first-round match against Kaiou Mou was abruptly canceled by Grandmaster Kaku, who deemed certain participants unworthy. Kaku’s intervention culminated in Mou’s unconsciousness, though Han Kaioh’s own bout remained unresolved. Later, Han clashed with Mohammad Alai Jr., leveraging Alai Jr.’s exclusive reliance on boxing to secure an early edge. However, his overconfidence in this tactical advantage backfired when Alai Jr. countered with unexpected speed and adaptability, sealing Han Kaioh’s defeat. Available records note his black hair but omit further physical descriptors, personality traits, or involvement in narratives beyond the Raitai Tournament.