After Becoming the Emperor's Sister-in-Law in a Tragic Romance, I Became a Slacker

Shen Xi transmigrated into a heart-wrenching historical romance as the older sister who stood in for the female lead, the male lead's white-moonlight love. After the female lead returned, the male lead tormented the stand-in both emotionally and physically, taking her blood every day to make medicine for the female lead. In the end, the male lead even sent the stand-in to assassinate the emperor, and on her wedding night she was stabbed to death by the villainous emperor, who had been pretending to be frail. When Shen Xi first transmigrated into the story, it was her wedding night. The emperor, who played the pig to eat the tiger, was lying on the bed, just an inch away from the knife in her hand. She and Xie Chengkong met each other's eyes. "Why hasn't Your Majesty's beloved consort made her move?" Xie Chengkong asked. Shen Xi's legs gave way, and she fell to her knees, holding out the dagger with both hands. "Your Majesty has misunderstood. I have no intention of killing you. I recently acquired a precious dagger and have come to present it to Your Majesty as a wedding gift for us both!" The scumbag male lead, Xie Chengyi, and her white-moonlight younger sister knelt at the foot of the steps, looking at the woman in the arms of the man seated on the throne. Their voices were barely audible: "We greet Your Majesty's sister-in-law." Palace attendants carried in dozens of wooden barrels and set them before the white-moonlight girl. Xie Chengkong stroked the hair of Shen Xi, nestled in his arms, and stared coldly at the people below. "I hear my beloved consort's younger sister is fond of blood. I specially prepared fresh blood from pigs, ducks, cattle, sheep, deer, and more than a dozen other animals. Drink your fill, and you may not leave until you finish it." For years, Xie Chengyi waited for news that Shen Xi had successfully assassinated the emperor. He waited and waited. When his entire family was sentenced to death, all he received was an imperial decree appointing Shen Xi as empress. Theme: The supporting female character turns the tables and sings her own song.