History
Origin
The Ancient Purity Blade was Immortal Emperor Gu Chun's True Treasure.[1][2]
The Ancient Purity Blade is praised as one of the world's greatest weapons.[1] Even Li Qiye praised it as one of the best Immortal Emperor True Treasures in history.[2]
Immortal Emperor Gu Chun left the sword in the Gu Chun's Four Branches.[2]
Current Era
Immortal Emperor Gu Chun's descendant, Puresun Daoist, is the current owner of the Ancient Purity Blade.[2]