Sun Wukong, the Great Sage Equal to Heaven, is Tang Sanzang's disciple. He once rebelled against Heaven and was suppressed under the Five Elements Mountain for five hundred years. During the pilgrimage, he holds back due to concerns about the backgrounds of demons. He has Fiery Eyes and can travel 108,000 miles in a somersault. He is the primary threat to Bai Ze and Madam Bai.