Standing at 170 mm tall, this Alter figure captures KOS-MOS in her ALMecha form with a sleek, armored silhouette. The armor is rendered with clean lines and layered plating that suggest kinetic energy ready to surge, finished in a pale white base with accents of deep blue and metallic gray. Subtle sculpting highlights the character's iconic hair and facial expression, while clear plastic parts or translucent effects provide the illusion of energy cores. The base and stand are minimal yet sturdy, ensuring a balanced, dynamic display from multiple viewing angles.

KOS-MOS is a legendary combat android created by Vector Industries to protect her companions and bring an end to the threats facing the Xenogears-like worlds in Xenosaga. In Episode III: Also sprach Zarathustra, her mission intensifies as she confronts remnants of the antagonist forces, questions her own identity, and fights alongside Shion Uzuki and the crew against new and old enemies. Throughout the journey, KOS-MOS's advanced symbiont systems, disciplined combat protocols, and evolving emotional responses shape her decisions in critical battles, betrayals, and moments of fragile trust. Her presence underscores themes of purpose, autonomy, and the cost of power.