After the Journey to the West, Sun Wukong, the Victorious Fighting Buddha, transforms into a youth named Yishi to enter the mysterious realm of "Kunlun Three Realms" in search of his lost Flower Fruit Mountain, which has been swallowed by this enigmatic world. There, he unexpectedly meets Azi, a descendant of the monkey tribe from Flower Fruit Mountain. After joining forces with the monkey tribe to defeat the demon clan, he finally reclaims his long-lost homeland.