The Yashimajinumi is a well crafted long Polearm (ポールアーム, Pōruāmu) wielded by Yūichirō since her time in office as Kazekage, her unique fighting style and experience with this glaive has made her a harbinger born for bloodbath. The weapon became a heirloom of her reign and to her children hoping one of them succeeds as the new inheritor for Yashimajinumi. It is known for its natural sharpness and brutal beating on any material and toughen hide creatures, some of the elder counsel members believed the new kazekage forged this weapon in dark magic which would explain the dark ripples and patterns changing all over the glaive's surface. Yūichirō can expand its sharpness, range and lethality by channeling wind chakra onto the blade giving it a dark green hue.