In the distant and bright youth, the reckless and shy girl Jiahui hid her unspeakable love to protect the more precious friendship and abided by her duty as a student. It wasn't until the end of the college entrance examination that he faced up to his first love, which he had suppressed for too long, and bravely walked together with Yuan Yi, who was in love with her. The long-distance relationship made the two of them miserable, and the appearance of another person beside them caused cracks in their love. Later, because of a man-made misunderstanding, Jiahui and Yuan Yi chose to break up when they loved each other deeply. After the breakup, Jiahui finished her college life seriously and started working. Just when I thought I was finally used to living alone and could forget that unforgettable love affair, I met Yuan Yi again by chance...