Arashi has been approved as well :3<br/><br/>Maybe parts of a celestial key linked to the moon, which is a prison to an evil celestial spirit. The key was broken and its parts scattered so it could never be summoned. However, A doom cult, called the Lunar Knights, tries to find the pieces and release this entity, believing it will cause the moon to fall...<br/><br/>Just sharing this random idea, but we could do something else entirely.