The figure presents Miyuki Kazuya in a dynamic, ready-for-action stance, captured mid-catch with a focused gaze that reflects his calm and calculating nature. He wears Seidou High's baseball uniform, detailed with crisp pinstripes, stitched seams, and the team crest etched on the chest. The sculpt highlights his signature catcher equipment: protective mask resting at his side, a well-defined catcher's glove ready to receive a dramatic pitch, and sturdy boots planted on a textured base that evokes a baseball diamond. Subtle shading emphasizes muscle tone and the fabric's folds, while glossy paint on the eyes and glove adds lifelike depth. Overall, the piece conveys precision, discipline, and the undeniable intensity of a late-game moment.

Miyuki Kazuya is the steady heart of Seidou High's defense in Ace of Diamond. Renowned for his sharp mind, preternatural game sense, and unwavering focus, he guides Sawamura Eijun from behind the plate and often speaks with quiet authority that steadies the team under pressure. Though reserved off the field, Miyuki's dedication to his teammates runs deep; his loyalty to Seidou and his own relentless pursuit of improvement shape every pitch. His relationship with Sawamura evolves from tactical partnership to mutual trust, illustrating how skill without trust becomes hollow and how trust, in turn, makes talent truly shine on the diamond.