Nineteen-year-old Cheng Yunduo gave up studying abroad for the boy he had always had a crush on, the handsome and versatile Yu Ke, and was admitted to the same school as him. Yu Ke, who had not had feelings for him since entering college, suddenly pursued her, leaving Cheng Yunduo trapped between happiness and worry. The appearance of another boy, Ning Ze, made Cheng Yunduo see clearly the hidden and dirty aspects behind the life he thought was going to be happy.