Kiryuohken

The Kiryuohken (鬼龍王剣) is Shingetsu's ultimate weapon. An oversized sword evolved from the sword that Shingetsu usually carried throughout his raids in different planets.

The initial appearance of the weapon was more of a generic humongous broadsword at first glance. While Shingetsu prioritized his duty as Prime Minister and training and honing his skills, the sword's true power slowly awakens due to the presence of the being opened. According to Shingetsu himself, the sword while in its hibernated state, strongly reacts to the power of Pandora Box which causes its awakening.