There is a naughty monkey in the Huaguo Mountain in the Aolai Kingdom of Dongsheng Shenzhou. He worships Subhuti as his teacher and learns the seventy-two transformations. After that, he takes over the mountain and becomes the king, calling himself the Monkey King. The Jade Emperor sent Taishang Laojun to subdue the Great Sage. Unexpectedly, the monkey refused to be restrained and made a big fuss in the sky. He was imprisoned in the alchemy furnace for forty-nine days to develop his piercing eyes. He kicked over the alchemy furnace and got out of control. He was suppressed by Tathagata at the foot of Wuzhi Mountain. Five hundred years later, a monk came from the Eastern Tang Dynasty. He was originally the reincarnation of Jin Chanzi. Guanshiyin chose him to go to the West to obtain Buddhist scriptures to save all living beings. He rescued monkeys on the way to Wuzhi Mountain, and picked up Bajie and Sha Seng along the way. The four masters and disciples subdued demons and embarked on a long journey to obtain Buddhist scriptures.