Kokushibo Spring-Action Sword Keychain | Upper Moon One

The Blade of the Strongest Demon — Now in Your Hands

Inspired by Kokushibo, Upper Moon One and the most powerful demon under Muzan in Demon Slayer: Kimetsu no Yaiba, this Spring-Action Sword Keychain captures the terrifying elegance of his Moon Breathing blade. With a smooth click-and-spring mechanism, draw the blade just like the demon swordsman himself.

• 🌙 Kokushibo Moon Breathing blade design — inspired by Upper Moon One's iconic sword
• ⚔️ Spring-action draw mechanism — smooth, satisfying sheathe and unsheathe action
• 🔑 Sturdy metal keychain ring — attach to keys, bags, backpacks, or zipper pulls
• 📦 Perfect gift for Demon Slayer fans, anime collectors, and villain enthusiasts
• ✅ Compact & portable — carry the power of Upper Moon One every day

For fans who appreciate the darker, more complex side of Demon Slayer, Kokushibo's keychain is a standout piece in any serious anime collection.