In a small village in the southwestern part of the Dou Shen Empire, Nangong Shang trained tirelessly day and night in swordsmanship to avenge his parents' imprisonment and the destruction of his family. One early morning, wielding a silver longsword, he showcased astonishing sword energy. During a practice session, Nangong Shang accidentally activated the family's ancestral sword, "Yihun," which emitted radiant seven-colored lights and entered his body, greatly enhancing his strength...

As Nangong Shang and his sister gradually uncovered the conspiracy behind their family's downfall, Xue Chu, the son of the Snow City Lord whose machinations were being exposed, led an attack on the small village. Nangong Shang, using the powerful Yihun Sword, managed to defeat the invading master swordsmen, but he was severely injured in the process. However, Yufei almost lost her life protecting her brother. Enraged, Nangong Shang vowed to avenge this deep-seated hatred. The Yihun Sword seemed to respond to Nangong Shang's fury, as a mysterious power gradually emerged...

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"Sir, this is the Scarlet Flame Demon Army. Although they don't number up to thirty thousand, there are still over twenty thousand. This represents almost one-third of the Scarlet Flame Demon Army's combat strength.