Wang Dali, a young man from rural areas, accidentally broke into his adoptive father Wang De's affair and learned that he was not his biological child. He went to Dongguan to find his relatives based on clues from the mole on the back of his biological mother's hand. On the train, he rescued the young girl Qiu Wei. After arriving in Wanwan, he met A Ling, who looked the same as Qiu, in a nightclub. He beat up the son of a domineering high-ranking official and was recruited by the media boss Qiu Guorong. Dali gradually found out that Qiu Wei and A Ling were separated twins. He also discovered that the mole on the back of Qiu Guorong's wife's hand matched the characteristics of his biological mother, and doubts about his life experience arose. A Ling is deeply trapped in ambition and colludes with villains to commit evil. While Dali deals with all forces and protects the Qiu sisters, he uncovers layers of fog to explore the truth about his life experience, and completes his growth and choices in the ups and downs of Dongguan.
