King Murong Yan of Jingbei investigates the Lingjiang murder case ten years ago for his mother, and the clues point directly to the long-lost Jianghu organization Baigudu. He led the Xuanjia Army to annihilate Luoya Village in Cangmang Mountain and captured the bandit leader Shen Tang alive - she was the orphan of Shen Jinglan, the commander-in-chief of Baigudu. Murong Yan kept Shen Tang by his side in the name of the princess, and the two went from confrontation to joining forces to uncover the truth in the successive cases of witness annihilation.
After Shen Tang learned about his life experience, he and Murong Yan went to the White Bone Platform in Cangmang Mountain to find the "Shadow Secret File" left by his father. The secret files have irrefutable evidence: the culprit who killed his father, falsely accused his mother, and collaborated with the enemy and treason was none other than Murong Yu, the current Emperor of Jian'an. Murong Yan raised troops to fight against the rebellion, and Shen Tang led the old Baigudu troops to sneak into the palace city and cooperate with the inside to attack the imperial capital. Murong Yan killed his brother with his own hands to avenge his injustice. On the day when the world was settled, he knelt down on one knee in the Hall of Supreme Harmony and used his country as a betrothal to marry Shen Tang, the former young master of the bandit village, and she finally became his wife who would stand beside him in the world.
