Su Nuan was the eldest daughter of Su Liren, a Minister of Public Works in the Yuan Kingdom. Her mother, a former Crown Princess's daughter, had died under suspicious circumstances after being confined to the rear courtyard by Su Liren and his concubine Cao Shi. Su Nuan's stepsister Su Zhen had stolen her fiancé, Zhao Jingcheng, who had broken off their engagement to marry Su Zhen instead. In her past life, Su Nuan was forced into a Chongxi marriage with Ling Cang, the Zhenxi Grand General, who had fallen into a coma after returning from military triumph. She followed the Ling family into exile, where her mother-in-law and sister-in-law starved to death to ensure she had enough food. Upon returning to the Su family, she was betrayed and forced to drink poisoned wine by Su Zhen, then sent to be buried alive with the emperor. Only after her death did her younger brother-in-law Ling Yun, who had always looked down on her, seek revenge and collect her body.
Su Nuan awoke reborn to the day before her wedding. Her father had just slapped her and announced the marriage was irreversible. Remembering her past life, Su Nuan realized the jade pendant her maternal grandmother had left her contained a Blessed Land—a spatial dimension that could be activated with a drop of blood. She demanded the pendant back from Su Zhen, then violently attacked her stepsister and stepmother, scraping Su Zhen's face with a phoenix hairpin and threatening to have her buried alive instead. She escaped the mansion disguised as her maid Dong'er and activated the Space using her own blood on the jade pendant.
Inside the Space, Su Nuan discovered a vast dimension with mountains, water, and a vegetable garden. She realized that only those with imperial blood could fully activate it. She then proceeded to systematically empty the Su mansion's storerooms, taking everything from grain and ingredients to her mother's dowry and her father's private wealth. In Su Liren's iron-doored private storeroom, she discovered letters between her father and the Minister of War revealing they had conspired to seize the Ling family's military spoils and frame Ling Cang for embezzlement. Understanding that the Ling mansion would be raided the next day, she also emptied the General's Mansion's stores and sneaked into the imperial palace at night with Ling Yun, who had been following her. She placed evidence of Su Liren's bribery in the Imperial Study and emptied the emperor's secret vault in the Cold Palace, which contained millions of taels in silver and jewels.
The next morning, the imperial eunuch arrived to announce the Ling family's exile to the Northern Desert. Ling Cang, believing he was dying, deliberately spat blood on Su Nuan's face to protect her from suspicion. Su Nuan revived him using acupuncture techniques she had learned from studying medical texts. She negotiated with the escort captain Cheng Feng, bribing him with a pearl and offering a fertility prescription to his father-in-law in exchange for removing the women's leg irons and providing a donkey cart. Along the journey, she maintained her role as a devoted daughter-in-law, caring for her ailing husband Ling Cang, her strong mother-in-law Xue Shi, her simple-minded brother-in-law Ling Yun, and her young niece Tuan Tuan. She also reconnected with Dong'er, who had followed the exile procession despite being told to leave. Su Nuan used her Space to stockpile food and supplies, ensuring her new family would not suffer the starvation that had killed them in her previous life. She also recruited three thugs who had attempted to sell her into a brothel, giving them a Warming Pill poison and ordering them to ruin Su Zhen's reputation in the capital.
