Lin Xiaowu, an ordinary middle school student, has a brand new beginning in high school after a summer transformation. Just like many people hope, Lin Xiaowu also hopes to spend three years of high school in an ordinary way, fall in love, eat, drink and have fun, and get into the ideal university. But life is uncertain. You never expect who will leave or come into your life at the next moment. Will it bring you pain or happiness? Lin Xiaowu also doesn't know how he met her, her and her, and how he started? Is the ending happy or sad? The process is destined to hurt, but in love, no matter how painful the wound is, it still has the taste of happiness.