The nights in Jingdu are always wrapped in an unbreakable chill. Three years ago, the ironclad case of general Su Zhenbang's collusion with the enemy and treason caused the entire city to burst into blood and everyone in the Su family was executed. Only the young master Su Jin managed to escape by relying on a secret passage and became a prisoner of the imperial court. Three years later, in the morning mist in the ancestral land on the outskirts of Beijing, a figure in a green shirt quietly appeared, the old scar on his palm glowing ferocious red under the firelight - it was Su Jin who had returned. The half piece of blood jade in his arms is the only token left by his father and the key to uncovering the unjust case. The secret map is missing, the secret guards are chasing after him, the shadow of the Xuanfeng tribe in the Western Region is quietly approaching, and the undercurrent in the Jingdu court has already surged. On one side is the dragnet set by the traitor party, on the other side are the old troops scattered in all directions and the allies hiding in the dark. Su Jin uses his courage as his blade and his obsession as his front to work his way towards the center of power step by step. Blood debts must be repaid with blood, and unjust cases will eventually be vindicated. This road to revenge, entwined with the righteousness of the family and the country and personal grievances, is bound to be thrilling every step of the way, starting from the hidden stone chamber in the ancestral land. When the pieces of the truth were gradually pieced together, he discovered that behind the Su family's unjust case, there was actually a shocking conspiracy affecting the safety of the sea.