The Qin family, Jiangcheng's foremost dynasty with a market value in the tens of billions, faced an inexplicable crisis when their heiress, Qin Qian, vanished without a trace. Qin Shuang, the family patriarch, desperate to find his granddaughter, hired private investigator Lin Yang to uncover the truth. During his investigation, Lin Yang discovered that Qin Qian's own husband, Zhao Huaiyi, had conspired with her best friend, Yang Xue, to push her off a cliff—leaving no body to recover. Just as Lin Yang prepared to deliver the evidence to Qin Shuang, Yang Xue intercepted the plan and had him brutally tortured to death. Even Lin Yang's wife, Liu Qingcheng, was caught in the fallout—disfigured and forced into a miscarriage. When Qin Shuang arrived with reinforcements, he saved Liu Qingcheng from certain death. Burning with vengeance for her husband and unborn child, Liu Qingcheng struck a deal with Qin Shuang: she would undergo plastic surgery to assume the identity of the "deceased" Qin Qian and infiltrate the
