Radiating a cool, enigmatic aura, Fate/Grand Order - Nazo no Heroine X by Sukimadou presents a poised silhouette that hints at a storied history. The figure stands in a dynamic, mid-action stance, with a sweeping coat and flowing hair rendered in sharp contrasts of light and shadow. Meticulous sculpting captures the character's subtle gown details, armor trims, and weapon accents. A carefully chosen color palette emphasizes the mysterious nature of her identity, while soft gradients and panel lines bring depth to every fold. The surface finish combines a high-gloss shine on emblematic accents with a matte core to enhance readability from any angle. Overall, it exudes secrecy and elegance suited to her lore.

Unknown Heroine X appears in Fate/Grand Order as a concealed figure whose origin is shrouded in rumor and mystery. Across many events, her true name and allegiance remain hidden, making her a captivating antagonist-turned-ally whose feats unfold as the story progresses. She wields a striking blend of elegance and ruthlessness, her techniques revealing a balance between calculated precision and daring improvisation. As the Commander unlocks more of her past, her role shifts from enigmatic stranger to a vital ally whose resolve shapes pivotal battles. This backstory underpins her visual design, inviting collectors to imagine the hidden chapters behind her masked persona.