Three ancient copper coins passed down from ancestors can give a glimpse of others' memories for three seconds. In order to save her seriously ill mother, Su Nian planned to sell off the copper coins, but was forced into the palace by the incognito emperor.
The queen died suddenly and mysteriously. She was framed and thrown into the cold palace. With the help of copper coins, she saw a three-coin serial murder case that had been buried for many years. The emperor secretly sent a secret letter inviting her to investigate the case, but the concubines in the harem and the queen mother's courtiers all had their own agendas.
She hid her edge and solved the mystery step by step, only to realize that she had already been involved in the beginning of this game of power. After seeing through all the conspiracies and life experiences, she no longer allowed herself to be manipulated by others and carved her own way out of the palace.
