During the Chongzhen period of the late Ming Dynasty, Princess Changping (played by Charmaine Sheh) and Princess Zhaoren lived with Queen Zhou among the people. They were not allowed to talk about their life stories at will. Zhaoren always missed the beautiful scenes in the palace when she was young, and the kind-hearted Changping always found ways to satisfy her sister's desire to dress herself up. Changping met her childhood playmate Zhou Shixian (played by Ma Junwei) again in the cannon foundry, and the truth about Queen Zhou's demotion that year was finally revealed. The mother and daughter were recalled to the palace, and Shixian also entered the palace to teach. However, the current situation was turbulent, and Shixian was recommended to the battlefield. The two lovers had no choice but to separate again. Li Zicheng captured the capital and the Ming Dynasty perished. Soon Wu Sangui led the Qing army into the pass and the Qing Dynasty was established. Although Shixian and Changping reunited after the disaster and got married as before, they had already held a firm belief in their hearts...