Produced by Muki Monooki, Fate/Grand Order Nazo no Heroine X - Alter stands 270 mm tall in a dynamic action pose that suggests a decisive moment of heroism. The figure captures the character's poised silhouette with flowing elements: hair swept back, a cloak or cape that ripples as if caught in wind, and armor with crisp edges that reflect light differently from the matte surfaces. Fine sculpting renders subtle fabric folds and minute accessory details, from gauntlets to the character's weapon, with precision that rewards close inspection. On the base, a textured platform provides stability while complementing the figure's stance without overpowering the subject. The paintwork emphasizes tonal contrasts, with careful shading to bring out depth in folds, reflections on metallic accents, and a clean, refined finish that suits display in a curated collection.

In Fate/Grand Order, Nazo no Heroine X appears as a mysterious figure whose true identity remains concealed as the story unfolds. Her origin is shrouded in intrigue, a heroine whose presence seems to bend the rules of time and fate. She operates from the shadows, sometimes aligning with the player’s Servants, other times pursuing a personal objective that hints at a more complex history. Her power is shown through a unique weapon and energy that gleams with hidden potential, suggesting a connection to lost legends. Throughout her appearances, she challenges assumptions about heroism, forcing others to weigh loyalty against the greater good. The narrative teases clues about an ancient conflict, the cost of secrecy, and the true meaning of being a hero, inviting fans to speculate about her background, alliances, and ultimate purpose within the Fate/Grand Order universe.