Cho Hakkai is a character from the Japanese manga and anime series Saiyuki, which is inspired by the classic Chinese novel Journey to the West. He is known for his calm demeanor and intelligence, often serving as the voice of reason among his companions. Hakkai has a mysterious past and possesses the ability to transform into a powerful creature, reflecting his complex nature. In the series, Hakkai travels with Genjo Sanzo, Son Goku, and Sha Gojyo on a quest to retrieve sacred scriptures. His character embodies themes of redemption and friendship, making him a vital part of the group's dynamic as they face various challenges on their journey.