A young boy, Son Goku, who was left all alone in the world during the great rebellion at the end of the Sui Dynasty, is given the title of "Great Sage of Equal Heaven" by the powerful demon " Wuzhiqi " and is destined to fight those in power for the sake of the people's grudges. After meeting Hong Gai-er, a young man under the command of the warlord Liu Heidi, and a beautiful girl named Long Jin-young, who holds the title of " Xuan Nu of Equal Heaven, " Goku becomes embroiled in a battle with bandits led by the brothers Kinkaku and Ginkaku, and Li Shimin of the Tang Dynasty. Goku becomes a wanted man after carrying out destructive activities in the palace with Hong Gai-er, who is plotting to assassinate the Tang prince, but during that time, he meets the traveling monk Xuanzang several times due to a fateful fate, and is drawn to Xuanzang's belief that he will even break the national ban to retrieve the sutra from India, and follows him.