Mecha Idol ONYX: Stage Armor Performer

Cinematic 3D render, vertical 4:5, a fictional adult female performer in her mid-20s wearing elegant black mecha stage armor, fully original face with sharp confident features, dark hair pulled into a high ponytail with a silver ring clasp, standing elevated on a dark concert stage in future Seoul. Her armor is sculpted matte black plating over a fitted bodysuit, polished gunmetal shoulder guards and forearm shells, thin glowing violet energy seams running along the torso and thighs, a segmented armored skirt that fans like mechanical petals, and articulated boots with light-strip soles. From her back unfold two large holographic wings made of translucent cyan feather panels edged in light, each feather a separate glowing shard. She holds an energy microphone whose head is a ring of violet light, raised in one hand as she belts a note, chin lifted, free arm extended toward the crowd. Foreground: the dark edge of the stage runway with embedded light strips and drifting fog spilling over the lip. Midground: the performer on a raised circular platform with a glowing ring. Background: tiers of arena darkness filled with a sea of tiny audience light sticks in cyan and white, four drone spotlights hovering with visible volumetric beams, and a huge curved screen showing an abstract onyx gem graphic. Composition is a low heroic angle from below stage level, 35mm cinematic lens, performer centered and towering. Cold white key light from the drones rakes down her armor, violet neon bounces up from the platform ring onto the plating undersides, cyan rim light separates wings and ponytail from the black background, and haze thickens every beam. Materials stay readable: brushed matte composite, mirror gunmetal, emissive seams, glassy holo feathers with refracted edges. Style anchors: Unreal Engine 5 cinematic, octane render, high-end game boss-intro energy, K-stage spectacle. [accent color: violet or cyan] [wing shape: feather shards or blade panels] ultra detailed, 8k, sharp focus, dramatic contrast.