Huo Yushu accidentally transmigrates into a prehistoric beast world, where she is rescued and adopted by Huo She, the powerful Snake King, and the two become engaged. She believes she has found a safe place to settle down in this world, but everything changes when Lin Ziyin, another transmigrator, appears. Huo She grows increasingly cold toward her and cruelly cuts off her food supply, leaving her in desperate circumstances. At her most despairing moment, she encounters Fu Quan, another transmigrator who has turned into a little dog. The two find warmth and comfort in each other's company. Using her intelligence, Huo Yushu secretly devises a plan and successfully escapes the cold-hearted snake tribe. She and Fu Quan journey together, gradually growing closer and protecting one another. Eventually, they seize an opportunity to return to the modern world hand in hand, leaving behind the conflicts of the beast world and finding a stable, sincere happiness.