Introduction: Lin Wanxing is a "transparent person" in Class 7, Grade 2, Nanjiang No. 1 Middle School. Her sense of existence is so thin that even the head teacher will misremember her name. In order to repay the debt owed by her father, she was forced to sign a three-month "campus couple contract" with Shen Juan, a popular figure in the school and a top student from a well-off family. The two acted as a sweet couple in front of the public, but privately they agreed not to interfere with each other and to break up the relationship. However, in the process of countless deliberately created "accidental encounters", forced participation in campus activities, and the process of facing family and academic pressure together, the fake drama began to reveal true feelings. When the contract is about to expire, Shen Juan's ex "Bai Yueguang" returns to China, and the truth behind Lin Wanxing's father's debt emerges, they must face their hearts: Can this youth that started with trading be exchanged for sincerity?
