Qiyun, the Hanyuan of the Prime Minister's Mansion, is Shen Qingci's prison and her purgatory. After losing her mother at the age of three, she became the most humble concubine in the house. Her mistress Liu's viciousness, her sister Shen Qingrou's arrogance and bullying, her servants' tendency to follow others' influence, and her father's indifference and alienation all trapped her within this red wall, where she struggled to survive every day.
Her mother's instructions before she died were still in her ears, "Live without fighting or grabbing." But the desperate situation that was approaching forced her to put away her innocence, hide her edge, and accumulate strength in forbearance. A Buddhist bead given by Master Huiming and a secret wooden box left by her mother hide clues to revenge and her hope of breaking the situation - her mother's death was not an accident. Under Liu's gentle mask, there is a huge conspiracy to collude with her relatives.
The courtyard is covered with cold snow, poisonous plots are secretly hatched, the springs are filled, and the way out is desperate. At the age of three, Shen Qingci shouldered his mother's blood feud, protected his loyal maid Qing He, and fought every step of the way in the man-eating prime minister's house. She is neither humble nor arrogant, neither flustered nor hurried. She detects conspiracies in subtle ways and looks for opportunities in desperate situations. She gradually transforms from a concubine who is at the mercy of others to a strong person who can take charge of herself.
The red walls are towering, jade beads are broken, people's hearts are unpredictable, and the road ahead is difficult. She not only needs to avoid Liu's fatal attack, but also needs to find the truth about her mother's murder. She also needs to wait for an opportunity to contact her distant uncle for help. This battle for survival that started in Hanyuan will eventually set off huge waves in the Prime Minister's Mansion, and she, Shen Qingci, will eventually break the cage, use her own power to avenge the sea of blood, and take control of her own life and death.