Lin Yan'er, a high-quality mainland girl studying for a master's degree in Hong Kong, was once a competitive and strong woman. Because she was studying abroad in Hong Kong, she was far away from her ex-boyfriend. After being betrayed by her ex-boyfriend, she decided to reinvent herself in Hong Kong and become a woman again. With the help of my friend Xia Tian, she transformed into a fresh and gentle woman. She fell in love with He Hengjun, a boy from the same major. However, He Hengjun also made a private lifelong contract with his girlfriend. But because he met Lin Yan'er in Hong Kong, he was so moved that he wanted to give up his promise to his ex-girlfriend and stay with Lin Yan'er for the rest of his life. The betrayal between men and women made Lin Yaner see the helplessness of reality and the laws of nature. Because she couldn't bear to see another innocent girl being betrayed inexplicably like herself, she chose to withdraw from the relationship. The final decision she made made people cry.