Five hundred years ago, she was Wu Yanchu, the best swordsman in the world, who was killed by a sneak attack by her sworn brother Lu Chen and the demon world. The remnant soul wandered for five hundred years and was reborn in the body of the Wu family's eponymous loser in Qingyang Town. Bullied by her family and ridiculed by the world, she emerged from dormancy with the memories of her previous life's swordsmanship. A layer of Qi refining shattered the foundation-building magic weapon, a sword shocked the Heavenly Sword Sect, the Nascent Soul reversed the sword and transformed into a god, and the sound of the sword spread across the Eastern Wasteland for thousands of miles. Lu Chen has become the leader of the Immortal Alliance, and Demon Lord Mo Yuan covets the origin of swordsmanship. The sword mark of Su Yunshang, the reincarnation of a Taoist monk, resonates with her heartbeat. The person who hurt her the most in her previous life will block everything for her in this life. In this life, she will cut off all the shackles and let the world chant her name again - Wu Yanchu, the sword fairy returns.