Shū

belongs to the owner of a motel where Naruto and Jiraiya stay during their search for Tsunade.

Appearance
Shū is a small cat with white fur and light-coloured eyes. He has a brown tail and a circular-shaped brown fur marking right above his right eye.

Search For Tsunade Arc
When Naruto sees him playing with a water balloon, he gets the idea to use two hands to create the spinning motion for the Rasengan.

Trivia

 * Masashi Kishimoto may have named this cat after his own cat, Shu.