Li Er, a 17 year old girl who has great difficulty hearing out of her left ear, is rejected after confessing her love to a boy, Xu yi. Instead the boy is in love with Li Bala, a girl who is in fact in love with Zhang Yang. Li Er befriends Li Bala, who dies due to an accident. As the movie progresses, Li Er overcomes her hatred of Zhang Yang, whom she blamed for Li Bala's death.

A large blast hits the gas pipeline in the industrial park due to a sudden earthquake, which triggers massive explosions and engulfs the neighboring area in flames. Facing the escalating fire danger, the Fire and Rescue Force quickly reaches the hazardous zone to hold the fire and cut a firebreak, in the meantime, many survivors are pulled out of the rubble.

Xu Yi and Gao Xiaonan unexpectedly reunite during their college years, resulting in a bond that spans multiple years as they accompany each other and grow together. Will the friendship between Xu Yi and Gao Xiaonan change? Will they part away or stay together?