Shen Yanqing, a descendant of the Shen family of the former sword-making family, in order to explore the mystery of the disappearance of his father Shen Jinghong twenty years ago, took the mutton-fat jade, a family heirloom, and followed the clues to find the Broken Rainbow Sword that his father had lost. In the "Jubao Pavilion" in Qingping Town, she was chased by men in black from the Silver Wolf Sect, who wanted to seize the legendary "Liuhong Sword Manual" hidden in the Broken Rainbow Sword.
At the critical moment, Xie Linyuan, the second son of the Xie family in Jiangnan, came to the rescue. Xie Linyuan seems to be a child of a medical family, but he possesses unique skills and uses a bamboo flute as a weapon. His life experience is inextricably linked to the disappearance of Shen Yanqing's father - his father, Xie Changfeng, was revoked from martial arts by the leader of the Silver Wolf Sect for helping Shen Jinghong hide sword manuals.
As the two fight against the Silver Wolf Sect together, many clues gradually emerge: the word "Lin" on Xie Linyuan's bamboo flute is consistent with the handwriting on Shen Jinghong's calligraphy, Shen Yanqing's mother mentioned before her death that Shen Jinghong had given Xie Changfeng a sword quenched by Tianshan Ice Soul, and a incomplete map marked "The Ice Soul Hidden Place", the coincidence between the seventh day of the Silver Wolf Sect's memorial day and the day of Shen Jinghong's disappearance, and the blood-stained cloth brought by the spirit fox.
Shen Yanqing and Xie Linyuan join hands, following these clues, step by step closer to the secret of the Silver Wolf Sect and the truth behind Shen Jinghong's disappearance, uncovering a grudge and family past spanning twenty years.
