Guruko

is a ninken and a personal summon of Kakashi Hatake. 
== Background ==
In the anime, after they made a contract with Kakashi, Guruko and the other ninken aided him to search the abducted Rin Nohara by the Kirigakure shinobi and acted as a diversion in order to allow them to flee.Naruto: Shippūden episode 371 They also helped searching for the fleeing Orochimaru.Naruto: Shippūden episode 352
== Appearance ==
He has tan fur, a white snout, long ears that have a dark brown colour and noticeably more pronounced whiskers than the other ninken. He wears the standard outfit of Kakashi's ninken, which consists of a blue vest with the heno-heno-moheji seal and a Konoha forehead protector on his forehead.
== Abilities ==
Guruko possesses heightened senses with which he can use to track his target with ease. He has also demonstrated the ability to track his target underground through the use of the Summoning: Earth Release: Tracking Fang Technique as well as hold a target down, allowing Kakashi to attack them freely. He also has has exceptional teamwork with the rest of his pack, able to develop and effectively use several offensive and defensive formations in battle which make use of the manoeuvrability and powerful limbs.
== Part I ==
=== Prologue — Land of Waves ===
Kakashi called on Guruko and the ninken pack to track and capture the missing-nin Zabuza Momochi. They managed to bite onto the missing-nin and pin him in place. This allowed Kakashi to use Lightning Cutter without fear of a counter attack. 
=== Sasuke Recovery Mission ===
Later, Guruko and his fellow ninken were summoned by Kakashi to track down Naruto Uzumaki and his team who had gone off in pursuit of Sasuke Uchiha.
=== Sunagakure Support Mission ===
He along with the other ninken were summoned by Kakashi to investigate the Takumi Village.
== Part II ==
=== Kazekage Rescue Mission ===
At the start of Part II, Guruko and the ninken pack were called upon to track down the Akatsuki member Sasori using a small piece of his clothing.
=== Itachi Pursuit Mission ===
Some weeks later, Kakashi summoned the pack to help track down Itachi Uchiha. He and Akino partnered with Shino.
=== Paradise Life on a Boat ===
== Blank Period ==
=== Kakashi Hiden: Lightning in the Icy Sky ===
Kakashi summons Guruko and the other ninken to search for the exploding tags planted around the Tobishachimaru. Once they gather all the tags, the ninken give them to Might Guy.
== In Other Media ==
=== Movies ===
==== Road to Ninja: Naruto the Movie ====
== References ==
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