It tells the story of the heroine Yuzu's secret love for the male protagonist Koichi. This hidden love has never been discovered by the male protagonist and her friends. It was not until ten years later when Yuzu was about to give up that Koichi realized the heroine's feelings. In the past ten years, Yuyouzi cares more about her friendship with Zhueyi and Qiao Yue. Yuyouzi has been working hard to maintain this friendship that she feels is very important. However, she cannot escape the fading of time and years, and she discovers that Qiao Yue deceived herself and Zibo. After confessing to each other, their relationship began to become tense. The relationship that was once so beautiful could no longer bear any mistakes. After college, they both returned to their starting points. The once unforgettable friendship was no longer there. Youzi left the city with feelings that had never been known...