In the 21st century, Shen Zhao, a graduate student in the Department of History, accidentally traveled through time due to a leakage in the laboratory, and became Shen Rouronghua, the abandoned concubine of the Zhou Dynasty who was falsely accused of witchcraft and relegated to the cold palace. After being bound to the palace fighting survival system, Shen Zhao relied on modern knowledge and a clear mind to navigate the treacherous harem step by step: she used chemical knowledge to eliminate the concubine's trap, used the palace layout to defeat the enemy party, used the scars from the rescue in the past to regain the love of the emperor Xiao Che, and finally counterattacked from the cold palace to the deposed concubine and ascended to the throne.
When the system unlocks the "return" option, Shen Zhao is faced with the question of returning to a peaceful life in modern times, or staying in the palace with the emperor.
