Qu-0213 Naka-ani is one of the four personalities housed within the robot Qu-0213, a main character of the anime Bullet/Bullet. The unit operates as a single body shared by four distinct identities: Nosa, Kau, Naka, and Granny Ay. The alternate names of these identities reflect family-like roles inside the machine, with Naka-ani functioning as the older brother figure, described in the series as the laid-back uncle personality. Each personality is tied to a specific color that appears on the robot's face display, and blue marks the moments when Naka-ani is in control.

The robot body that Naka-ani inhabits is short, with a red and black frame, large arms, and an oblong head. Its face is a simplified computerized screen with eyes and a mouth that change color to signal which personality is currently active. Among the four, Naka-ani stands apart for his relaxed and easygoing demeanor, providing a calm counterweight to the other identities that share the same shell. His unhurried, casual manner gives the robot a distinctly different tone whenever he is the one present.

In the story, Qu-0213 works alongside the boy Gear and the gambler White Bear in a small operation that recovers stolen items in a post-apocalyptic wasteland. The robot as a whole acts as a protector and helper to Gear, and Naka-ani contributes to that role through the shared body, lending the team his composed and unflappable outlook during the jobs they take on and the dangers they encounter afterward. His notable qualities lie less in special abilities and more in the personality itself, as his steady, laid-back presence shapes how the robot interacts with its companions and reinforces the family-like bond that holds the group together.