Shen Xuan, who was studying in a foreign country, came across a piece of news that her sister Shen Yi committed suicide by cutting her wrists in her apartment. Shocked, Shen Xuan flew back to China and accidentally discovered the diary left by her sister. She learned from the diary that her sister, who was always optimistic and strong, had been suffering from depression for a year and was being persecuted all the time. In order to find out the source of the person who forced her sister into depression and death, Shen Xuan entered the entertainment company where Shen Yi worked as a fashion stylist. But in the process of tracing the truth, she fell in love with someone she shouldn't have loved...
