30 year-old working woman Li Ansheng’s life in Shanghai is suddenly disrupted by the publication of a novel, entitled “Qiyue and Ansheng”, a chronicle of her friendship with Qi Yue during her youth. Coupled with an accidental encounter with Su Jia Ming, a past love, her long repressed memories are unleashed with the force of a tsunami. The two girls seemed destined to become friends from the moment they entered high school. Though they were inseparable and believed that their bond would last for the rest of their lives, the cruelty of youth eventually led them to separate paths. Even more shocking is the discovery of a long buried secret shared by the women – a secret that serves as an emblem of their youth and the proof of their friendship.