Zheng Liu: 35-year-old male, general manager of Racecourse, Ai's ex-husband, divorced and in love with Xin Xiaowen. Indecisive, suspicious, delicate and gentle. Emotionally, I am uncertain. I am infatuated with my ex-wife Ai Xiaoxu. Ai Xiaoxu's ex-husband, because Ai Xiaoxu had plastic surgery, didn't know about it until five years after marriage and divorced. Later, Xin Xiaowen, who suffered from amnesia, fell in love with her because Xin Xiaowen was very similar to Ai Xiaoxu when she was young. After many twists and turns, the two finally failed to achieve their desire to get married. Finally, when Zheng Liu was most frustrated, he met Ai Xiaoxu who had been waiting for him.

Chen Bingnan (Guan Li): 34-year-old male, former general manager of Nanhai Auction Company, later owner of auto repair shop and Xin Xiaowen's ex-boyfriend. A forbearing and tough man with strong goals, vigilance and feelings. Xin Xiaowen's boyfriend, because his partner Xu was tired of antiques, absconded with money. In order not to implicate his girlfriend Xin Xiaowen, he gave his fake ashes to Xin Xiaowen and had a plastic surgery in order to make himself disappear completely in this world. Later, Xin Xiaowen, who suffered from amnesia due to suicide, fell in love with Liu Zheng again and decided to recover Xin Xiaowen again. The latter two died in the sea of fire together.

Xin Xiaowen: 25-year-old, female, former bodybuilding coach of Nanhai Fitness Club, later coach of Racecourse Gym, ex-girlfriend of Chen Bingnan. Beautiful, simple, energetic, weak on the surface and strong on the inside, as long as you decide, you must do it. Because of the death of her boyfriend Chen Bingnan (played by Guan Li), she committed suicide in despair of life and was later saved by July. Memory loss after waking up. She fell in love with Zheng Liu, but with the recovery of her memory, Xin Xiaowen gradually remembered her once beloved boyfriend. One is her current boyfriend, and the other is the boyfriend she once loved deeply. Xin Xiaowen chooses between two dilemmas.

Xu: 35 years old, male, former deputy general manager of Nanhai Sales Company. Evil, rogue image, in order to achieve the goal at all costs. Chen Bingnan (Guan Li) and Chen Bingnan (Guan Li) are good friends. They started an auction company together, but they hid an antique and got the company into trouble. Unexpectedly, Chen Bingnan (Guan Li) absconded with the money first. Later, because he didn't believe the news of Chen Bingnan's death, he went back to Beijing to get his money back. Xin Xiaowen, who has been entangled in amnesia for many times, finally found Chen Bingnan after plastic surgery and set herself on fire.

Ai: 30-year-old female, formerly a surgeon in a hospital in Nanhai City, and later became a surgeon in a plastic surgery hospital in Beijing. Liu Zheng's ex-wife has a son. Beautiful, mature, strong, able to bear the pressure of life alone. Because her husband didn't understand the concealment of her cosmetic incident, after the divorce, a man came to Beijing with his children and became the chief surgeon of the plastic surgery hospital, helping Yao Qingling with cosmetic surgery, which inadvertently exposed Chen Bingnan's cosmetic surgery. Later, because of Liu Zheng's re-understanding of the concept of plastic surgery, their hearts were close again.