Xin Yao, along with her maid Xi'er, companion Gao Shengwei, and the mysterious wanderer Shi Aoxiang, embarks on a journey filled with deep discoveries about life. Along the way, they confront a series of mysterious murders, each driven by hidden grudges. Yet, no matter the motive, one truth stands firm: breaking the law is never justified. Even the most skilled criminals cannot evade Xin Yao's sharp instincts and the reach of justice. The story highlights that no one has the right to take a life, and true justice can only be served through the law.