Moon Blade

The Moon Blade (月輪, Gachirin; Viz: Gachirin) is a powerful and the secret sword that grants the wielder unparalleled power if accompanies with the Sun Blade according to a legend. Bringing that legend to reality is the Council of Swordmasters's longstanding mission.

Its current location is unknown. During the battle against the Monster Association, Nichirin, after giving him the Sun Blade, entrusted Atomic Samurai with the task to find the Moon Blade.