He is one of the nine sons of the Dragon King, who can get wind when he wants and rain when he wants; she is the only woman in the underworld, Meng Po, who is in charge of reincarnation and destroys people's memories of previous lives; they have crossed paths since they came to earth, but when everything comes back, he is no longer in her memory. She is still the same Po Meng who loves to skip work, loves to make trouble, and loves to neglect her responsibilities. So, for him, his brother peeked into the marriage book and overturned Yue Lao's marriage tree, causing a chaos in human marriages. He and his brother were demoted to the mortal world; and she was demoted to the mortal world because of neglecting her duties and disturbing the order of yin and yang. But can this encounter restore her memory of him, make her fall in love with her again, and can she remember the relationship between them again? Or will she return to the underworld and continue to live her carefree life?