Misumi Tsurugi

was a member of Kabuto's Genin Team.

Chunin Exams arc
Misumi and the rest of his team entered the Chunin Exams to spy on their fellow participants for Orochimaru. During the preliminaries, he was matched against Kankuro, who he trapped in a stranglehold. He threatened to break Kankuro's neck if he didn't forfeit, and did so at Kankuro's insistence. Kankuro ended up to be a puppet in disguise, which quickly trapped and constricted Misumi. The act broke every bone in his body shy of his neck, and Kankuro was declared the winner.

Land of the Sea arc
Though Misumi and Yoroi were not seen again in the manga, they appeared in the anime's Land of the Sea arc. They were research assistants and bodyguards to Orochimaru's former scientist, Amachi. He, like Yoroi, had taken off the cloth covering his lower face, and he wore a completely different outfit. During the events of this arc, Ino Yamanaka used her Mind Body Disturbance Technique to force him to tie his arms to pillars in one of the rooms of the labs, and left him there when it collapsed, possibly killing him. When Yoroi informed Amachi about his possible death, he didn't seem to care, noting that Misumi probably wasn't fully dedicated to fulfilling his goals anyway.

Abilities
To be more efficient in the gathering of information, he had received a Soft Physique Modification, a surgical procedure that allowed him to dislocate his joints to fit into any space. He then controlled his softened body with chakra, allowing him to stretch and twist any part of his body at any angle, elongating and even coiling around his opponent.

Trivia

 * His last name (meaning sword) along with Kabuto (Helmet) and Yoroi (Armor) forms a helmet-armor-sword trio.