Demon Kings Treasures (悪魔王の宝物; ˈdēmənkiNGˈtreZHər) also known as the "Treasures of the Lost Kings" are demons attempts at creating a sacred gear that went horribly wrong. The "demon swords" are technically "artificial sacred gears" since they can be used by anyone who can learn to wield them.
| Entity | Attribute | Value | Rank |
|---|