Su Qinghuan was a concubine in the Taifu Mansion. She went to the palace to change her clothes in order to avoid family strife. In the deep palace, she was suppressed by the imperial concubine, framed by her sisters, and made difficult by the eunuchs. She was struggling every step of the way. However, she used her intelligence to see through the poisonous scheme and resolved the crisis with forbearance, unexpectedly attracting the attention of Emperor Xiao Jingyuan. Xiao Jingyuan saw through the hypocrisy of the harem and cherished Qing Huan's purity and tenacity. He supported her many times and helped her gradually rise from a low-ranking concubine to a concubine. The two went from testing to falling in love. Qing Huan helped him stabilize the harem and collect information about the court, while Jing Yuan shielded her from open and secret arrows and gave her exclusive favor and honor. In the ups and downs of the palace, they work together to fight against the conspiracy, protect each other in the whirlpool of power, and compose a pure love legend of the deep love between emperors and concubines.