Shen Wanyi, the surviving daughter of the Shen family, enters the palace as a talented lady. Framed by Noble Consort Su while investigating the Shen family's wrongful case, she forms a fragile alliance with her maid Jin'er and Noble Consort Su, gradually discovering that the mastermind behind the scenes is actually the Empress. The Empress fabricates military intelligence documents, frames the Shen family, and sets a secret chamber trap. In the end, Jin'er brings back the sheepskin confession evidence, the Emperor learns he was hoodwinked back then, the Shen family's wrongful case is vindicated, and Wanyi faces the choice of staying or leaving after being exonerated.