This novel was called " The Divine Beast Female Companion ". It was a modern fantasy novel about a modern girl named Li Siyu who accidentally transmigrated to an ancient fantasy novel and became the male protagonist, Bai Haotian's divine beast, Bai Peng. Although Bai Peng was a mythical beast, Li Siyu did not like the identity of a mythical beast. She longed to return to modern society. In the novel, Bai Haotian was a villain. He was sinister and cunning, full of malice towards the entire world. Li Siyu would turn into a human on the night of the full moon, and her identity as a mythical beast would automatically disappear. Then, she would return to modern society and start her own life again.