Lina was assigned by the company from Hong Kong to work in Guangzhou, and got to know the accountant Yu Xiaodong. After falling in love, Xiaodong proposed romantically. Lina, who no longer dreamed of a married life, lived a sweet and happy life. The two wanted to hold a wedding banquet in Hong Kong, so Lina simply quit her job and returned to Hong Kong to arrange the wedding banquet six months later. Xiaodong's younger brother Ridong worked as a ground manager for a shipping company in Hong Kong and had his own residence. In order to save money, Lina did not stay in a hotel, but moved in with Ridong and slept in the guest room. Ridong called Lina sister-in-law. Ridong was reserved and very polite, while Lina was free and straightforward. Because of their different personalities, they caused conflicts in life. For example, when Lina screamed while watching a thriller DVD at home in the middle of the night, Ridong was afraid that she would disturb the neighbors. Gradually, Lina and Ridong secretly disliked each other. Lina and Xiaodong chatted about family matters, and Xiaodong was very angry and called to teach his younger brother Ridong a lesson. Lina was deeply embarrassed. In order not to add to the misunderstanding between her and Ridong, she was waiting for an opportunity to make amends and apologize. It happened that Ridong helped his friend Aji resolve his emotional problems and brought Aji's girlfriend, Aifei, home to teach him a lesson. Lina mistakenly thought that she was Ridong's good girlfriend, which made Ridong laugh and cry. However, Lina comforted and cared for Aifei carefully, which made Ridong more fond of Lina and believed that Lina was still a kind-hearted woman! It was a bolt from the blue, and Xiaodong's mind was in turmoil! The reason was that Xiaodong's female secretary had a crush on Xiaodong for eight years and suddenly expressed her love! Xiaodong was distracted and after reflection, he found that he was not a good husband! Under the strong reproach of conscience, Xiaodong secretly regretted the marriage and decided to break up with Lina peacefully! Ridong got the news first and was deeply angry at Xiaodong's behavior. He forced Xiaodong to complete the wedding banquet in Hong Kong and fulfill his man's responsibility. At the same time, Lina didn't know the truth and was still living in a dream. Ridong was helpless and uncomfortable to help Xiaodong deceive Lina. What was going to happen was inevitable. Xiaodong was determined to divorce, and after confessing to Lina, he fled back to Shenzhen to wait for Lina to agree to divorce. Lina fell into the abyss and stayed at Ridong's house, unable to face it. She was absent-minded all day long. Ridong sympathized with her and accompanied her day and night, and moved Lina. Instead of worrying and distressing, it is better to face reality, separate from Xiaodong, and stand up again. Lina finally figured it out, and she and Xiaodong formally signed the divorce agreement and got the divorce certificate. Ridong also helped with the aftermath, apologized to Lina's family and friends on behalf of Xiaodong, and suffered a lot of grievances, but he didn't say a word, very graceful. Lina gradually felt that Ridong was a rare good man. The two continued to live together. Although they didn't fall in love, they were like brothers and sisters, like confidants, supporting each other. Gradually, the two fell in love, and both of them were single, so they absolutely had the right to walk hand in hand. But Ridong was stubborn and didn't want to do something he would regret, so he repeatedly avoided Lina's hints. Lina gradually realized that love doesn't have to be impulsive, and liking Ridong doesn't mean she has to be a couple with him. Lina moved away, started dating again, and made new friends. Ridong didn't say it, but he had already applied for a transfer from the company to Guangzhou Baiyun Airport to avoid Lina. Although lonely, it was better than impulsive love. As fate would have it, four months later, Lina returned to her career and went to Guangzhou for a meeting. After the meeting, Lina flew to Hong Kong and met Ridong again at the airport counter. Months of longing and concern were suppressed in the heart, but there was no passion. The two responded to the casual chat of good friends, passed the emotional barrier, and became a pair of good men and women who truly cared for and placed their trust in each other. To be able to love, you must know how to love yourself and not be hurt again because of temporary romantic passion.