On their wedding night, red candles flicker.
Lu Chenzhou, a condemned prisoner serving as a stand-in for the Seventh Prince, is pushed into the bridal chamber by the real prince, a deeply suspicious man. His task is to test the waters with Pei Jinghong, the legitimate daughter of the Marquis of Zhenbei.
But the moment her veil is lifted, this famously icy beauty, the most beautiful woman in the capital, strikes without warning. Her poisoned hairpin pierces the throat of the real prince, who is spying from a hidden compartment beneath the bed!
With blood staining her wedding dress, Pei Jinghong grips the bloodied golden hairpin and glares at Lu Chenzhou, murderous intent in her eyes. "Who are you?!"
With death at his heels, Lu Chenzhou calmly pulls out the poisoned hairpin, drives it deep into the real prince's heart, and smiles devilishly.
"Your Highness, your hand was too light. Let me finish him off for you!"
"Now you've killed your husband and I've killed my master. We're truly husband and wife, bound together by the same rope!"
As soon as the words leave his mouth, the Heaven's Mandate Usurper System roars to life!
By impersonating the royal family and stealing its fortune, he can redeem era-defying firearms, peerless generals, and ten thousand bushels of grain!
From then on, Lu Chenzhou attends court by day in place of his dead husband, trading barbs with the assembled officials, and spends the nights working up a sweat in the prince consort's bed in his place.
The suspicious old emperor only wants to use him as a worthless blade he can snap whenever he pleases, to quell internal and external threats.
Until one day, three thousand black-armored cavalry smash through the gates of the Golden Throne Hall. Clad in imperial robes, Lu Chenzhou declares:
"Father, your blade was so sharp that I accidentally cleaved your empire in two!"