In the century-old Great Zhen Dynasty, the Twin Towers Incident stirs up a storm. The entire Jing'an Marquis's household is slaughtered, while the Regent's family is sentenced to death. Both families are branded traitors, and the imperial capital's sunset is stained red with blood. Lu Zhaoye, the lone surviving child of a military family, escapes death by sheer luck. To uncover the truth, he enters the palace as a guard, where he encounters Jiang Linshen, the Regent's stepson, amid the treacherous palace intrigues. Bound by a shared blood feud, they go from mutual suspicion to an uneasy alliance, probing deeper at every turn through court machinations and conflicts in the martial world, until they uncover the shocking conspiracy behind two deadly poisons, Heartless Fate and Bone-Blooming Flower.
From secret letters in the Cold Palace to rainy nights in the martial world, from a farewell at the edge of a cliff to a showdown at court, they endure life-and-death trials as their feelings are pulled back and forth between hatred and trust. When Emperor Bai Ting's true identity as Lu Zhaoye's cousin, Lu Ting, is exposed, and the ambitions of Jiang Chengfeng, the mastermind who conspires with foreign tribes, come to light, their personal grudges ultimately give way to the greater good of their country. The brothers reunite, and close friends join forces to crush the conspiracy and clear the families' names in a final battle at the imperial tombs. At last, peace returns to the land. Lu Zhaoye and Jiang Linshen put aside their struggle for power and retire together to the martial world, leaving behind only an epic legend:
