At the age of 8, after her mother died of illness, Su Yao went alone to the city to seek refuge with her biological father, but he cruelly drove her out of the house. Homeless, she fell by a twist of fate into the hands of a group of debt-collecting thugs. Everyone thought she had fallen into a wolf's den, but who would have thought that these 'bad people' everyone avoided would become the fathers who loved her most. To pay for her schooling, they worked desperately to earn money, humbled themselves to ask others for help, and did everything they could to lift up her life. In the end, Su Yao turned her life around, became the top scorer in the whole province, and was admitted to Peking University, while the biological father who had once discarded her like a worn-out shoe was filled with regret. Along the way, Su Yao and the thugs had long become each other's most important family; they lit up each other's lives and headed together toward a better future.