Shen Yuan is the most inconspicuous daughter of Shen Chongyuan, the most treacherous official in Daliang. Her biological mother died young and she is treated as a pawn in the family. According to an imperial decree, she married her younger sister, Gu Yanzhi, a general who was rumored to be murderous and ruthless.
On their wedding night, Gu Yanzhi said that she was a "debt-paying object". Shen Yuan responded with a smile, "That's what the general said," and hid the poison-quenching silver needle in his sleeve.
Two people with a blood feud, in the same general's mansion, each hides their own secrets and has their own plans. They get closer through temptation and pulling, they are tempted through calculation and exploitation, and they sacrifice everything for each other at the moment of life and death.
In the end, Shen Yuan personally sent his father to the guillotine, and Gu Yanzhi regained the throne that should have belonged to him. On the day when his great revenge was avenged, he tore up the letter and pushed her against the wall with scarlet eyes: "You have calculated your heart and you still want to escape?"
