Ten years ago, Yin Susu, the "Pure-Hearted Sword Master," lost her beloved, Ling Yunkang. She crippled her own martial arts, sealed away her memories, and withdrew from the martial world. The talented young Shang Qianzhou was determined to compete for the position of Martial Arts Alliance Leader so he could marry her, now an ordinary and straightforward woman with amnesia. But his rival, Tuoba Ying, stole the "Golden Feather Token," which contained demonic arts, froze Alliance Leader Zhu Wanjiu in ice, and sent both of them crashing into the mortal world.
Stranded in the wilderness, Yin Susu rescued Shang Qianzhou, who was wounded by an arrow and had taken on a new identity as a general. They grew close and fell in love. Tuoba Ying secretly watched them, seeking Yin Susu's "heart's blood" and "tear of true love" to unlock the Golden Feather Token. In the process, he unexpectedly discovered the truth of his own origins and the secret of Ling Yunkang's true qi within him.
When the royal family tried to force Yin Susu and Shang Qianzhou into marriage, they fled, and she was struck by a poisoned arrow while saving him. At the moment of her death, Ling Yunkang's consciousness awoke within Tuoba Ying, revealing the past and Yin Susu's true identity. Her memories returned, and a single tear of true love finally unlocked the Golden Feather Token.
The imprisoned "Poison Immortal," Xiao Linglan, broke free and bewitched Tuoba Ying, uniting the demonic cult with foreign forces to slaughter the martial world. At the decisive battle on Mount Canggu, Xiao Linglan's demonic power was overwhelming. After learning the whole truth, Tuoba Ying resolutely sacrificed himself to summon his true qi and save the world. Yin Susu invoked the heavenly tribulation, and Shang Qianzhou took the strike meant for her. The lingering wills of Ling Yunkang and the Demon Sovereign Ji Chenyun flowed into the Golden Feather Token, purifying its demonic energy, destroying Xiao Linglan, and helping Yin Susu survive the tribulation and regain her powers.
Alliance Leader Zhu Wanjiu took charge once more. Three years later, Shang Qianzhou and Yin Susu married. Tuoba Ying, now ruler of the Western Regions, sent them a painting and a poem through an emissary, conveying his blessings and thoughts of their shared past from afar.
