TV-Series
Description
Coopy is a fairy and functions as the dedicated support companion to Yamaneko Arthur, also known as Wildcat Arthur. Her physical appearance is distinctive, marked by heterochromia, meaning her eyes are of different colors, and she sports a signature hat along with functional fairy wings.

On the surface, Coopy projects an airheaded or seemingly foolish demeanor, often acting as if she is somewhat clueless. However, this behavior is a deliberate act that masks her true, much more calculating nature. Almost all of her actions are measured and intentional, presenting a sharp contrast to her outward persona. Her core motivations are intertwined with her relationship with Yamaneko Arthur. While she is genuinely protective and takes an active role in caring for her charge, she also harbors a competitive rivalry with Arthur. This rivalry stems from her ambition to be recognized as the cutest, and it fuels a complex dynamic where she is both a caregiver and a competitor.

Within the story, Coopy acts as a reliable member of her team, assisting in missions that typically involve correcting historical disruptions caused by reckless Excalibur users. Her role is primarily defined by her close partnership with Yamaneko Arthur, but she also interacts with the wider group of Arthurs and their fairies. For instance, she showed a unique reaction when seeing Dancho Arthur in a pink apron, blushing deeply while others did not, indicating a layer of empathetic sensitivity or personal feeling. Her loyalty extends beyond her own partner, as she once threw herself defensively in front of another fairy, Bodach, to block an incoming Aqua Ball attack. Her development is shown through her actions in combat and group settings, revealing her to be more than just comic relief; she is a decisive and brave individual who does not hesitate to act under pressure. In one instance, she fought alongside Yamaneko Arthur to battle an antagonist known as the Casino Arthur, demonstrating her combat readiness.

Coopy possesses notable abilities that complement her small stature. Her powers are channeled through undetermined yet potent mechanisms, allowing her to unleash surprising physical strength in battle that defies expectations based on her size. She is an effective combat support, using her intelligence and tactical mind to adapt quickly to situations on the battlefield. Her fairy wings grant her the ability of flight, and she is capable of generating enough power to combine with her Arthur for a more formidable attack.