 Living alone for so long in the city, she looks around and finds both her parents have moved to the same place, not too far from where she lives now.She finds a puppy and decides to name it after Bing Bing, but she leaves the puppy with her parents to help ease their loneliness.When Mao Xiaobing had accidentally knocked over a pile of bricks, consequently killing the puppy, it triggered Ling-Ling's memories of losing her brother; hence she attacked Mao Xiaobing.