Su Qingyan, the concubine of the prime minister's palace, was forced to enter the palace to change clothes for her sister-in-law. She had no protection from her family and no golden fingers, but she had to struggle in the crisis-ridden harem. The concubine's oppression, the concubine's conspiracy, and the palace maid's conspiracy followed one after another. She resolved the crisis with her resourcefulness and impressed the cold-faced emperor Xiao Che with her sincerity. From avoiding disaster and self-protection to taking the initiative to fight back, she tore through the mask of hypocrisy, uncovered the mastermind behind the scenes, and maintained her pure affection with Xiao Che in the whirlpool of power. There is no cheating in life, only tenacity to refuse to admit defeat. See how Su Qingyan fights her way through the siege in the deep palace, ascends to the throne step by step, and overlooks the thousands of miles of mountains and rivers side by side with the emperor.