After a midsummer encounter, Lin Ling and Chen Chuwen's secret love quietly sprouted. He is a gentle academic master who uses patience and care to heal her heart that was hurt by a patriarchal family; she is a tough girl who responds to his deep affection hidden in the details with warmth. From acquaintance at a young age to agreeing to go to the ideal university together, they redeem each other on the road of youth. In the equation of youth, the encounter between Lin Ling and Chen Chuwen is the most unexpected variable. One is a sensitive girl trapped in a patriarchal family, and the other is a gentle academic master who hides her heartbeat and protects her silently. From the startling glimpse at the new student's registration to the patient tutoring in the library, he untied her heart with warmth, and she responded to his affection with sincerity. This two-way secret love eventually became the only solution to each other's life problems, writing the most touching campus love song!