A robot-type Hatsune Miku, fully armed. A mecha design of a justice-seeking combat robot, featuring a heavy full-armor chassis with boxy angular frames and exposed cables, caterpillar tracks for legs, a cylindrical head sensor that glows as it locks onto a target. It wields a beam-edged chainsaw weapon that sprays sparks as it slashes, and is equipped with an anti-missile catapult and a thick shield. The scene shows it soaring over a swirling sandstone desert under a dramatic overcast sky, with dust and oil stains visible on its scarred armor. The artistic style uses a cinematic dynamic angle, intense amber sunset lighting casting long shadows, gritty realism and kinetic energy, along with volumetric sandstorm particles mixing with sparks and smoke.