Empress Chu Qingci

Chu Qingci is the sole daughter of the Emperor, but the ambitious Grand Princess sends people to kidnap her for the throne. Twelve years later, raised by the Chen family, she is finally welcomed back by the Emperor's three former suitors to inherit the empire. After being impersonated and replaced, the truth is revealed, and she ascends the throne during the sacrificial ceremony. Feeling wronged, the Grand Princess orchestrates a plague, which Chu Qingci cleverly resolves.