Shen Qingci, daughter of an imperial physician from the previous dynasty, saw her entire family framed for treason. On the night they were massacred, her beloved, Xiao Jingyan, personally handed her a cup of poisoned wine. Reborn three years earlier, she hid half of a blood pact jade within her heart meridian and broke the back of her hand to secure a promise of protection from Xiao Chenyuan, the good-for-nothing second young master of the Marquis of Zhenbei's household.
Xiao Chenyuan had sealed meridians and feigned illness for seven years, while secretly holding ironclad proof of the Crown Prince's rebellion. Each armed with their own blade, the two went from using each other for mutual gain to risking their lives to protect one another. Until Shen Qingci discovered that beneath Xiao Chenyuan's pillow lay the begonia clasp she had clutched in her hand before dying in her previous life. Deep in its flower's heart was a message written in blood by her mother: "The Crown Prince is plotting rebellion. The proof lies in the heart meridian."
