A Doomsday Warrior Transmigrates to Ancient Times and Tames a Demon Prince

[His one and only + both each other's first love + marriage before love + political intrigue + god of slaughter + wicked heroine] The Minister of War of Cang'ao is falsely accused and his entire family executed. His married daughter hangs herself at her husband's home. When six-year-old Wen Huaidie loses her maternal family and her mother takes her own life, her stepmother and biological father abandon her at a rural farm, where she is cruelly mistreated and left to fend for herself. That winter, Wen Huaidie dies after her heart condition is triggered by the abuse. A wicked woman from the modern apocalypse transmigrates a thousand years into the future and inherits her body. She goes on to found Changyuan Pavilion, a renowned assassins' organization feared throughout the martial world. Ten years later, the emperor decrees that the daughter of her wicked stepmother is to marry Yan Hanyun, the crippled Prince Wuming, as his principal consort. Wen Huaidie is brought back to the Prime Minister's residence to take her stepsister's place. Beautiful beyond compare, Wen Huaidie captivates twenty-four-year-old Yan Hanyun at first sight on their wedding night. He thought she was a frail beauty suffering from a serious illness. Who could have guessed she was a masked demoness who had slaughtered countless people? They scheme for the throne and battle for the realm. Both are ambitious, but in the end, which one will yield for love and willingly submit? A subordinate rushes into the hall with a gun: “My lord, this is bad! The princess consort has led troops into the city!” The civil and military officials stare in terror at the Prince Wuming's consort, a longsword in her hand. Wen Huaidie points her sword at the heavens, her whole body radiating murderous intent. “This dragon throne belongs to me, Wen Huaidie.” Everyone turns to look at Yan Hanyun, the Prince Wuming, standing in the hall in armor with a bloodstained sword in hand. Both husband and wife want to be emperor and claim the same throne. What on earth is going on?