Kurotsuchi

is a kunoichi from Iwagakure and a bodyguard of the Third Tsuchikage.

Appearance
Kurotsuchi has short black hair with slim eyes. She wears fishnet tights on her legs and a black skirt over it with black pants on the side.

Abilities
Kurotsuchi has shown the ability to erect a protective rock dome, similar to Yamato's Wood Release: Wood Locking Wall. It is unknown if she created it out of thin air, or from a pre-existing source. The dome was powerful enough to endure several tones of rock falling on it.

Furthermore, she was able to deal with Zetsu's Spore Technique single-handedly without inflicting any visible wounds.

Five Kage Summit arc
Kurotsuchi and Akatsuchi escort the Third Tsuchikage to the Five Kage meeting. When they are leaving the Tsuchikage hurts his hips trying to carry his own luggage, so she suggests that he should retire. After arriving in the Land of Iron and the the meeting gets under way, Kurotsuchi comes to the Tsuchikage's defense during the Fourth Raikage's, outburst.

When Kurotsuchi hears that Sasuke Uchiha has infiltrated the meeting, she asks for permission to fight the man who killed Deidara. The Tsuchikage agrees but tells her to keep out of the Raikage's way. She watches Sasuke's battle from the shadows and, when Sasuke causes the room to collapse, creates a dome to protect herself from falling debris. She is also able to fend off Zetsu's Spore Technique. While leaving the Land of Iron, she suggests to the Tsuchikage that they should eliminate Killer Bee and Naruto so they can foil Madara Uchiha's Moon's Eye Plan and weaken Konohagakure and Kumogakure. Having heard him against the plan, she speaks back exclaiming that he isn't acting like the stubborn old man she knew of. His response is that he has remembered who he was before he became a "hard-headed old man".

Trivia

 * means "Black Earth".
 * Before the Second Naruto Fanbook, many fans were confused on Kurotsuchi's gender. However the fanbook revealed that she is a female.
 * As Kurotsuchi referred Deidara as "Deidara-nii" (an honorific meaning "big brother", either as family or a sign of respect), it is speculated that they could be siblings.