Amid the mist shrouding the ruins of the ancient Heavenly Court lie ancient legacies and mysteries of martial arts. Cultivators of the Mind Tempering and Body Tempering realms each have their own strengths, but only those at the Hall Entry realm or above can reach the heart of the legacy. The blind youth Xu Huaian has lain low here for years, relying on his hearing to sense danger and his sword intent to protect himself. A black blindfold conceals the strange sight of his Glazed Immortal Eyes, while the aura of the Nine Secrets’ “Movement Secret” and the "Primordial Sword Scripture" within him only slips out in moments of danger.
He rescues Jiang Yao, who was attacked while seeking the legacy. The young city lord of the City of the Abandoned, she bears a divine light aspect and has cultivated the Radiant Sword Dao to the seventh level of the Hall Entry realm, yet she struggles against the interference of Zhao Xuan and his skilled companions, as well as their covert demonic attacks. As they spend their days and nights recovering in a humble room, their hearts draw closer amid the chaos, and Jiang Yao realizes that the blind youth is far stronger than his apparent foundation at the basic level of the Mind Tempering realm suggests.
Zhao Xuan’s provocations and the pressure exerted by a ninth-level Hall Entry Body Tempering guardian become the thunderclap that shatters Xu Huaian’s disguise. He activates the “Movement Secret,” using the power of his mind at the peak of the seventh Sword Tempering realm’s Sword Aura stage to control his moves with precision. Fighting alongside Jiang Yao, he drives off their enemies, but his power is exposed, forcing him to flee. With the passageway about to close, Jiang Yao returns home with the legacy to oppose the Western Demon God, and the two promise to meet again.
As Xu Huaian devotes himself to cultivation, Old Xuan, a cultivator at the thirteenth level of the Mind Tempering realm, suddenly appears, resolving the crisis posed by the ruins’ restrictions and revealing the secrets of Xu Huaian’s bloodline and cultivation method. Determined to grow stronger, journey to the City of the Abandoned, and unlock the full secrets of the Nine Secrets, Xu Huaian finally takes a master and sheds his ordinary clothes, seeing the martial world with blind eyes.