In the 17th year of Yong'an, one hundred and thirty-seven members of the Shen family were massacred by the third prince Xiao Jingyan. A young girl, Shen Youwei, hid herself in a dry well and escaped. She only received a blood-stained silk book handed over by her mother who risked her life. The remaining words pointed to the frame-up of the arms case. The real instigator was the prince!
After lying dormant for two years, she disguised herself as Liu Mei'er, an orphan girl from Qinghe, and entered the prince's palace as a maid with her medical and poison skills. She worked step by step to get closer to the truth, but she discovered that the princess's long-term illness was hiding something fishy, and the fights among the concubines in the palace were all secret games. Even the third prince who slaughtered the family was actually...
The inkstone reflects the old shadow, and the secret room hides iron evidence.
The former brother-in-law is now a mortal enemy; the hypocritical prince has an undercurrent in the palace. The actual manipulators behind the scenes are plotting bigger schemes. She used herself as a knife to cut through the darkness of the capital, but behind the truth, there was a deeper chess game.