Hiruko  

, ヒルコ

Hiruko, a skilled shinobi from sunagakure, passed away and was later turned into one of sasoris first human puppets. he served as sasoris "puppet armor," allowing him to hide inside of sasori and protect him during battles. sasori even dressed hiruko in the akatsuki robes and used him frequently, causing others to recognize him only when he was wearing them. however, after failing to strike due to chiyos manipulation, haruno sakura destroyed the puppet. it is said that hiruko has changed since chiyo last saw him twenty years ago.