Kimimaro (君麻呂, Kimimaro) was the sole survivor of the Kaguya clan. Upon dedicating his life to Orochimaru, he became the leader of the formerly-named Sound Five (音隠れの忍五人衆, Otogakure no Shinobi Gonin Shū, literally meaning: Hidden Sound Shinobi Five People), until he fell ill, which forced him to leave the group.
Being a rare possessor of his clan’s Shikotsumyaku kekkei genkai, the clan patriarch feared Kimimaro’s abilities and had him locked up in a cage unless needed for battle. The Kaguya clan was wiped out when they attacked Kirigakure, seemingly for no reason other than the desire to kill and show off their ferocity. Having underestimated their opponents’ defences, they were slaughtered, with Kimimaro the sole survivor. Wandering soon after, Kimimaro was eventually found by Orochimaru, and recruited as one of his most loyal ninja.