Xiao Wei and Qiu Luohan are brothers who grew up together. They are the most important people in each other's hearts besides their family members. Xiao Wei actually likes Qiu Luohan, but he is a coward. He never admits that he likes Qiu Luohan, and even got a boyfriend and got married. Qiu Luohan has liked Xiao Wei since he was a child, and acted as the dissuader when Xiao Wei and Zhou Zixin were dating. Everyone could see that Qiu Luohan liked Xiao Wei, but Xiao Wei never knew it, or Xiao Wei never admitted it. Zhou Zixin and Xiao Wei came to an end after many quarrels. Especially when he knew that Qiu Luohan liked Xiao Wei, he often quarreled with Xiao Wei because of Qiu Luohan. Later, after Zhou Zixin and Xiao Wei broke up, Xiao Wei and Qiu Luohan had an accident. During various processes, Xiao Wei realized that she loved Qiu Luohan, but at this time Qiu Luohan was moved by Wei Xun's sincerity and decided to be with Wei Xun. But at the same time, Xiao Wei also confessed to Qiu Luohan, so Qiu Luohan decided to be with Xiao Wei. After the two confirmed their relationship, they often quarreled in later life because of their circle of friends. After being separated and reunited many times, their relationship gradually became sensitive. When Xiao Wei decided to propose to Qiu Luohan, Qiu Luohan was diagnosed with leukemia. Finally, Qiu Luohan made a wish in the church in Florence, hoping that Xiao Wei could forget him, so before leaving at the end, Qiu Luohan said to Xiao Wei: "I just loved you once." Many years later, when Xiao Wei set foot on the land of Florence again, he understood the meaning of Qiu Luohan's words.