The snow falls in Chang'an, and the sword spike hides injustice. The female swordsman Shen Qingci brought the "Shattered Snow Sword" to Beijing, just to find out the truth behind her brother's sudden death. The silver spike with the word "Yuan" engraved on the sword's hilt is the only clue.
When he first met Lu Jingyuan, the leader of the secret guards, he stared closely at the sword spike and declared, "This thing should not be in your hands." This sword spike was actually related to the orphan of the Su family who was involved in the "Snowy Night Unjust Case" ten years ago. The undercurrent in the court is raging, the prime minister has laid out a killing plan, the death of his brother, the extermination of the Su family, and the undercover Beidi are all entangled by a military talisman that can overthrow Chang'an.
Lu Jingyuan's identity was reversed (actually he was Su Muyuan, the orphan of the Su family), and the two went from being suspicious to being side by side. They fought together through life and death in the ceremony to quell the rebellion and the secret passage ambush. The sword spike reflects the snow, which hides the blood feud and the feelings of life and death. When the truth is revealed, can they protect Chang'an's peace and bring peace to justice that is ten years overdue?
