The heroine, Lin Lan, travels through time in a book and becomes the vicious supporting actress, Lena. From the start, she faces a desperate situation: divorce from her wealthy husband, Alexander, and certain death within 90 days. To survive, she is forced to join the "Everyone Eating Melon System," which requires her to win Alexander's favor. Lin Lan appears to be a loving wife, but secretly she rants about the tragic fate of Alexander and his family, enjoying this "melon-eating" experience. Unexpectedly, the entire Hall family suddenly gains the ability to read minds, clearly hearing her every thought. Initially shocked and hostile, they discover her "predictions" are coming true one by one, and their personalities crumble. They all embrace her as a "walking prophet" and the family's savior. As Lin Lan's complaints and unwitting attempts to save her family members linger, Alexander, the icy CEO, gradually becomes drawn to her adorable and witty appearance, observing her from the shadows before taking action. On the day of completing the mission, Lin Lan ran away, but was wanted worldwide by Alexander, who had been deeply involved in it. He was forcefully chased back, and finally staged a hilarious and sweet romance between a wealthy family, triggered by "eating melons".