Template:Rain Weapons The Shigure Kintoki (時雨金時, Shower in Late Autumn, Golden Moment) is a sword that only sheds its bamboo cover into the real steel blade when using the Shigure Soen Ryu style. A swallow is engraved near the scabbard mouth.
The Shigure Kintoki has been passed down through Yamamoto's family for generations, used only by those who mastered Shigure Soen Ryu. The Shigure Kintoki first appears as a plain-looking bamboo sword, but it is revealed that only if the user uses the Shigure Soen Ryu technique will it shed its bamboo cover. The katana will turn back into a bamboo sword once it is not used for a Shigure Soen Ryu technique.