No matter how beautiful the sunset is, it is fleeting. No matter how hard you try, you can't catch its tail.
Yiyi, who was looking forward to having a love in his college life that was about to end, fell in love with a boy at first sight by an unexpected coincidence, and dedicated her first confession to him, but was told that the boy already had many girlfriends. Yiyi endured the humiliation and pursued her intuition and became a mistress or a mistress. Yiyi tried hard to make him understand that her love only loves her. Gradually, the boys also discovered the goodness of Yiyi. Will their lives be smooth sailing...