"Journey to the West" was one of the four famous novels in ancient China. It told the story of Sun Wukong, Zhu Bajie, and Monk Sand, who protected the Tang Monk from the West and finally obtained the true scripture after 81 difficulties. Among them, Zhu Bajie helped defeat the demon king and Sun Wukong's three-tone banana fan was one of the story plots. Zhu Bajie helping to defeat the Demon King referred to Zhu Bajie being captured by the Demon King on the way to the scriptures. Sun Wukong and Monk Sand went to look for him and finally Zhu Bajie was rescued. In this process, Zhu Bajie helped Sun Wukong defeat the demon king and finally won. Sun Wukong's three-tone banana fan referred to the time when Sun Wukong was punished by the Jade Emperor to descend to the mortal world and was trapped in the Flaming Mountain. At this time, the Banana Fan was stolen by the Demon King. In order to retrieve the Banana Fan, Sun Wukong went to the Demon King's territory to disguise, eavesdrop, bribe, and other methods to finally successfully retrieve the Banana Fan and help Sun Wukong cross the Flaming Mountain.