A Confession Hidden in the Old Days

Gu Enxun was sweet and innocent. In college, she had an unrequited crush on Zhao Yucheng, a senior one year ahead of her, but it came to nothing. By chance, they met again during her internship after graduation, and he became her boss. One day at work, she happened to hear that Zhao Yucheng was about to get engaged. Heartbroken, Gu Enxun walked out onto the street, where a blinding flash of light changed the course of her life. When she awoke, she had returned to her college days, and her second unrequited crush began. But then Shichen, who had always liked Gu Enxun, appeared and threw her confession plans into disarray. She thought that after overcoming one trial after another, she would finally get to hold hands with her prince and live happily ever after. Instead, she stumbled upon Zhao Yucheng's diary and discovered that she was not the one hiding the truth from others: she herself had become part of the tangled time-space mystery. What will become of them?