Jian Shuman had a tough childhoodgrowing up with a mentally-ill mother amid hardship and poverty after witnessing her father's tragic death from a fall which is believed to be caused by Zhao Shilin, boss of Zhao Ming Tea Company. Shuman and her friend Jingchun find work at the Zhao family's tea company in the sales department after catching the management's eye. Shuman's childhood friend Lin Shunyuan is head of the packing and production department. By chance, he meets the spoiled Yutian is reckless and ambitious. Their relationship is strained as Shilin tended to favour Yufan's more prudent older brother Yusen. Yufan met Shuman and eventually he fell in love with her. Shuman, who had mutual feelings for Shunyuan, instead agrees to marry Yufan in order to take revenge on the Zhaos. Shuman puts her plan of revenge into action. After sabotaging the tea products, she killed her sister-in-law Rebecca by pushing her to death in an old building and did everything to hide her identity as a murderer with the help of Zhao Ming employee He Zhenghao. However, Zhenghao decided to back out and blackmails Shuman. Afraid Zhenghao would talk, she sabotages his car brakes and he is killed in a car accident. Customers accuse Zhao Ming of selling poor quality products and the health inspectors are called in. The proceeding incidents were too much for Zhao Shilin and he suffers a serious stroke and becomes paralysed as a result. Even her best friend Jingchun, Zhenghao's sister, is not spared as Shuman tried to silence her but Jingchun survived the attack. After a series of incidents, Mrs Zhao, Yusen and Yutian all begin to suspect Shuman. The turning point came when Yutian and her mother brought Zhao Shilin to the park. While Yutian went to buy ice cream for them, Shuman pushes Zhao Shilin's wheelchair into the path of an oncoming car. Mrs Zhao is killed while trying to save her husband. From then on, Yutian hated Shuman. Yufan still refused to believe that Shuman caused all the havoc. He went to ask several witnesses and was deeply shaken to find out that his mother and siblings' suspicions about Shuman were indeed true. Moreover, Zhao Ming has been cleared by the health inspectors and business is back on track. Shunyuan and Yutian become engaged and are happily planning for their future. Unable to accept the turnaround of events, Shuman gets intense with her plans to take revenge on the Zhao family. One day, Jingchun's father, who was old friends and business partners with Zhao Shilin and Shuman's father, meets Shuman with some shocking information that sends her reeling.
