Shinso is the name of Gin Ichimaru's wakizashi. It was specially crafted from chakra blades that could extend and contract when one channels his or her chakra into it. Gin had a great mastery of this blade, utilizing its unique properties to use various, highly fast jutsu. Although Hanabi Hyuga later claimed the blade after Gin's death, she wasn't able to master it to the degree that Gin had.
Debut: Chapter #001