Five years ago, Su Xiaohan and Xiao Mo were in love, but there were rumors in the school that Xiao Mo was engaged to the big star Gu Jing. Su Xiaohan and Xiao Mo did not express their feelings, and with the "conclusive evidence" of the rumor, Su Xiaohan resolutely left and had no news for 5 years. Su Xiaohan was originally a design student. After going to France, she began to study and won many awards in the past 5 years. Recently, a man who claimed to be Lao Xu found Su Xiaohan and offered her an opportunity to participate in the BRD jewelry design competition. After Su Xiaohan came back from France and came to Mingzuanfang Jewelry Company, she found that the boss of the company was Xiao Mo, and her junior sister Yu Mengmeng and junior brother Yuan Hao were also in Mingzuanfang Company. After Su Xiaohan left, Xiao Mo tried to find Su Xiaohan, but to no avail. Because of a promise made that year, Xiao Mo opened Mingzuanfang Jewelry Design Company, and Su Xiaohan's return to China this time was also planned by Xiao Mo and Yuan Hao. Su Xiaohan had a grudge and said that she returned to China just for the BRD competition. Xiao Mo also decided to take a long-term view of the reunion plan. Su Xiaohan was qualified to participate in the competition and needed to design a work with a designer from Zhu Han's studio, who was also her classmate at the time - Shen Yingying. Shen Yingying's design ideas tend to be market-oriented, while Su Xiaohan is more artistic. The two had a bad first meeting. In school, Su Xiaohan was always the first in her major, while Shen Yingying was the second for a thousand years. Because she focused on herself, Su Xiaohan rarely even noticed Shen Yingying. Shen Yingying was born in an ordinary family and wanted to make achievements through her own efforts, but she was suppressed by Su Xiaohan for a long time and lost a lot of opportunities. In order to get revenge on Su Xiaohan, Shen Yingying spread "engagement rumors", which made Su Xiaohan impulsively leave school and leave Xiao Mo. No one knew about this. Once the company had a power outage, Su Xiaohan, who was working overtime alone at night, was trapped. Xiao Mo rescued her alone, and the two opened up a gap in their hearts. It turns out that the rumors back then were not entirely rumors. Xiao Mo was indeed engaged to Gu Jing, but it was a play to satisfy a seriously ill old man. Over the years, Gu Jing has become more and more involved in the play, and the rumors have become facts. After learning the truth, the ice in Su Xiaohan's heart slowly melted. Not long after, Xiao Mo confessed his love, and the two reunited. In order to attack Su Xiaohan, Shen Yingying teamed up with Gu Jing to suppress Su Xiaohan. Before the competition, Su Xiaohan's design draft was stolen by Su Xiaohan. Shen Yingying terminated the cooperation with Su Xiaohan and uploaded Su Xiaohan's work as her own. Su Xiaohan had to redo it urgently. Her health was getting worse and worse, and the media broke the photos of Xiao Mo and Su Xiaohan. The public thought that Gu Jing and Xiao Mo were a couple. The appearance of Su Xiaohan was undoubtedly a slap in the face to the public. Should they cover up the truth to save the company or disclose the truth? Xiao Mo and Su Xiaohan had a dispute and finally decided to disclose the truth. At the press conference, Xiao Mo disclosed the fake marriage with Gu Jing. Gu Jing broke in and scolded Su Xiaohan as a mistress. Su Xiaohan fainted and was rushed to the hospital. Shen Yingying secretly replaced Su Xiaohan's medical examination report, making everyone think that Su Xiaohan had a brain tumor. Xiao Mo, Yu Mengmeng, Yuan Hao, parents, eldest brother Su Ziqiu, and bestie Cheng Yue all went to the hospital to visit Su Xiaohan and agreed not to tell Su Xiaohan about the brain tumor. But Yu Mengmeng accidentally leaked it. Su Xiaohan decided to complete her design work in the last moments of her life and leave again. After experiencing this incident, Gu Jing also saw clearly the relationship between herself and Xiao Mo, opened her heart to Xiao Mo, let it go, and told Xiao Mo about Shen Yingying's conspiracy to replace the medical examination report. Xiao Mo found Su Xiaohan, and in the final BRD competition, Su Xiaohan defeated Shen Yingying's plagiarized work with a more creative design. Shen Yingying, who had always done evil, also received legal punishment. Xiao Mo proposed to Su Xiaohan, and Su Xiaohan agreed, and the lovers finally got married.