Nine Weapons: Jasper Hairpin

There is a rumor in the world that whoever gets the jade hairpin will get the world's secret treasure. Quick knives, hidden weapons, master thieves, and venerable men all came for this hairpin and killed them one by one. Everyone is grabbing a hairpin, but they don't know that it is never the hairpin that really kills people. It's greed, it's desire, it's inextricable love. The sword of immortality is sharp, but not as sharp as the heartbreak of lovesickness. The most powerful weapon in this world is always a heart willing to die for you.