Su Yi and Shen Yiliang were childhood sweethearts (...), But when Shen Yiliang was 17 years old, their family declined, and the two began to be obstructed by Su Yi's mother, because she knew that Shen Yiliang liked music and could do it. Su's mother, who was unable to continue her music career due to her current situation, proposed that in exchange for helping Shen Yiliang study music abroad, she asked him to leave Su Yi and cut off all contact, and she was not allowed to return to China if Su Yi did not get married. So Shen Yiliang agreed amidst everyone's doubts. While abroad, Shen Yiliang only focused on music and did not interact with others. No matter what he did, he just walked alone. During this period, he accidentally met Lin Weiran, who was from the same country. Although the relationship between the two was just a gentleman's friendship, it still made Shen Yiliang, who had been alone abroad for many years, feel a little warm. She developed a crush on a cold girl, but Lin Weiran had to return to China in a hurry due to family reasons. At the same time, Shen Yiliang learned from the news that Su Yi was getting married. The complicated emotions in her heart made her secretly return to China regardless of the agreement with Su's mother, telling herself that she just wanted to see Su Yi for the last time and give herself a reason to give up.