The Armor of the Thunder Beast (Yoroi no Raijū) is a suit of armor that Isfet somehow managed to construct for Hiro Xanthe's use a couple years before she actually bothered to design it. As a whole, its purpose is to allow Hiro to take full advantage of the benefits that were bestowed onto him by his consumption of the Kumo Kumo no Mi, despite this Hiro did not actually need it, instead giving it to Newton for usage. It consists of a cuirass, a pair of gauntlets, a pair of greaves, and a pair of sabatons, and Fangs.