Huan Gu is a gentle, ordinary man whose greatest dream is a simple and happy life. Everything changes when he meets Yu Wen, a mysterious woman who appears during a storm and captures his heart. Their love story begins beautifully, and their marriage becomes a source of happiness neither expected. However, their relationship is targeted by a jealous rival who wants to destroy their bond. By spreading rumors and creating convincing illusions, the rival makes Huan believe that Yu Wen is actually a dangerous serpent demon from ancient legends. Lost in fear and confusion, Huan turns against his wife and breaks the heart of the woman who protected him. When the truth is revealed, he learns that Yu Wen’s secret existence was connected to a sacrifice that saved him from disaster. Devastated by his mistake, Huan dedicates his life to earning her forgiveness and rebuilding the love he destroyed.
