Yu Xiaofu, an ordinary girl with low spiritual roots and extremely bad luck, stepped into the waves of the Immortal Sect. She accidentally becomes a disciple of the notoriously crazy Lao Tianzun, and together with the gentle Chu Wuyou and the demon Shi Dali, who is always a foodie, is involved in the secrets of the three realms of immortality. On the way, she first met Hua Mengyao, the Holy Maiden of the Demon Sect, and the two parties moved from opposition to cooperation. After experiencing various twists and turns and embarrassing incidents, they gradually grew up and revealed the nature of the struggle between the three realms. The atmosphere of the book is light and humorous, with constant jokes, adventures and emotions interspersed. In the end, the protagonist and his group resolve the crisis in the three realms of immortals, demons and demons in a unique way, achieve mutual success, and discover the world that each of them truly desires.