Shen Qingci, a modern workplace planner, suffered from overwork and sudden death after a long period of staying up late working overtime. Opening her eyes once more, her soul transmigrated to the Great Qi Dynasty, becoming a low-ranking concubine in the deep palace awaiting death under false charges. Merely because her appearance was casually praised by the emperor, the original owner provoked the monstrous jealousy and hatred of Imperial Noble Consort Hua, was framed with the crime of plotting to harm the imperial heir, cast into the cold palace, and ultimately suffered a poisoned death. Having lived two lives, she had been at the mercy of others time and again, filled with resentment and unwillingness. On the verge of death, the heaven-defying harem immortal cultivation survival system was accidentally activated. From then on, Shen Qingci is no longer forbearing and weak, relying on modern rational thinking and system blessings to step by step dismantle deep palace conspiracies, fight back one by one against all perpetrators, and rise phoenix-like from the ashes within the perilous cage.