Shiyan

Shiyan is the Prime Minister of Hahyun, and the younger brother of Pasa sword spirit. He is the creator of the PaSa Sword and its match the PaChun Sword the two cursed swords. Supposedly, he convinced Emperor Moosungje that by starving orphan children and forcing them to fight one another, they would find that the survivors would save the kingdom. There is a hint that some spell may have been used to help the kids turn against one another. Shiyan is a demon that is a descendant of the the previous demon emperor, the Dragon Emperor. He was the one who created weapons and gave immortality to a group of demons called the "Black Star Squad" during the war between the Demonic and Heavenly realm. He and Taorun are old acquaintance but now seems like they are enemies. Shiyan currently "serves" Jaryoon, but in reality is manipulating him. He also has a hidden agenda in mind. Shiyan is willing to recruit anyone who is able to help him complete his goal, which is implied to be the death of the Demon Emperor, just as the Dark Prince is about to be named the Grand Emperor of Heavenly Destruction. Shiyan is responsible for making the two cursed swords that Rey Yan and Jaryoon presently use. Shiyan has been stripped of his previous power when he left the Demon Emperor's court; the Shiyan that appears throughout most of the manhwa is not his demonic form. This only appears in the illustration for chapter ten of Chronicles of the Cursed Sword in volume two.

Shiyan is the last enemy that Rey and his team has to face by the end of the series, he managed to kill Jaryoon before being killed by a combined effort of Rey, Hyacia and Shyao Lin.