The female lead Su Wan is a top designer deeply in love with her fiancé Xu Chengzhou. Six years ago, Xu’s mother embezzled public funds and suffered huge losses in stock speculation. She knelt and begged Su Wan to take the blame and go to prison, promising to give her company shares after her release. To protect Xu Chengzhou’s career, Su Wan took the fall alone, only to be misunderstood as a betrayer by Xu Chengzhou, who terminated their engagement on the spot. Six years later, Su Wan is released on medical parole due to terminal cancer and learns that Xu Chengzhou is about to marry a scheming woman. She visits the insane Xu’s mother and obtains the share transfer agreement from that year, only to be misunderstood by Xu Chengzhou as defrauding money, and is humiliated and beaten publicly by him and the scheming woman. With only one week left to live, Su Wan still silently completes the design drafts for Xu Chengzhou to help him through his crisis. In the end, the truth comes out. Xu Chengzhou is filled with remorse, but only endless regret remains. Su Wan passes away with unfulfilled love, leaving him to regret for a lifetime.
