Su Zhou is a girl who is about to enter high school. In the new high school, she meets her lifelong good friend Lin Xiaochen. She also meets various good and bad people, Han Yizhi, Qin Zhesi... And Lu Zhiran, her deskmate. Lu Zhiran is such a "little bitch" who sleeps every day, but his grades will never fall into the top ten in the class. He likes to make trouble with Su Zhou when nothing happens, but love is born in such friction, with the interference of Han Zhiyi, the encouragement of Qin Zhesi, Lin Xiaochen, and the silent support of his brother Su Ji. But fortunately, just like the fishing boat singing late, it is always a good ending.