Shen Miaoyin, daughter of the prime minister, enters the harem of Great Chu full of hope. But because of her innocent, naive nature, she is schemed against by Consort Li, Consort Hui, and others. Falsely accused of poisoning the imperial heir, her family is implicated, and she dies full of hatred in the Cold Palace.
But fate has other plans: she is reborn and returns to the moment she first entered the palace. This time, Shen Miaoyin is no longer weak and easy to bully. Drawing on her memories and hard-earned lessons from her past life, she deftly trades barbs with Consort Li in the garden, her words concealing sharp wit. In a secluded corner of the imperial garden, she meets Attendant Ning and forms an alliance with her, seeking peace together. She also has her maid Xiao He investigate, uncovering clues that Consort Li is colluding with people outside the palace. At a palace banquet, she even discovers Consort Li's affair with a minister, and quietly sows seeds of suspicion by taking advantage of Consort Hui's distrustful nature.
Shen Miaoyin advances cautiously, step by step. Within these vermilion palace walls, she wields her intelligence and talent as a blade, and her resilience and courage as a shield. She navigates the rival consorts, determined to clear her name and protect her family. Amid the turbulent machinations of the harem, she lets her own brilliance shine anew and writes a thrilling tale of rebirth.