Vertical 9:16 dark green sci-fi game-character promotional poster

Vertical 9:16 dark green sci-fi game-character promotional poster. A fully armored cyber-ninja stands in the center of the frame, shown from a three-quarter back angle, with the head slightly turned toward the left as if watching from the shadows. The figure wears dark graphite-black segmented mechanical armor, with clear shoulder plates, chest armor, mechanical arms, and a narrow armored waist. Circular neon green cores glow on the chest. The helmet is sharp and segmented, insect-like and ninja-like, with the face completely covered by a mechanical mask and only one diagonal neon green visor slit visible, creating a silent, calm, dangerous expression.

No human skin is visible. The face, neck, chest, waist, abdomen, shoulders, back, legs, and hip-adjacent areas are fully covered by armor or shadow. Do not reveal hair or a realistic human face. The armor should feel like cold, hard matte-coated metal with slightly worn combat edges, while the glowing cores feel like warm green glass lights casting soft reflections onto nearby armor plates.

Behind the character is a huge neon yellow-green glowing circular emblem, acting as the main light source. It creates intense backlight and green rim light along the helmet, shoulder armor, arms, and the vertical sword on the right side of the frame. Most of the front remains in shadow, with armor details revealed only by the visor, chest lights, and green ambient bounce. A long sword or katana stands vertically along the right side, extending from the lower area toward the top, adding strong vertical tension.

The background is near-black deep olive green, ink green, and smoky grey, with subtle grain, smoke, green particles, and poster-print texture. Add Chinese title typography at the top, small icons and date text on the right, decorative Japanese/Chinese microtext, and a huge angular neon green title at the bottom, partially covering the lower body. The composition should feel like a low-angle heroic poster: tall, cold, monumental, heavy in shadow, with strong green glow.

The mood suggests the battle had already ended once, but the armor still carries heat and scars. Now the figure stands still before the green energy ring, the visor still burning, and the blade will restart in the next second. Style keywords: cyber ninja, futuristic samurai, hard-surface mech armor, dark game poster, neon green visual system, Japanese sci-fi typography, silent intimidation.

Negative prompt: human face, visible skin, hair showing, cute robot, medieval armor, samurai cloth robe, blue sky, warm daylight, rainbow neon, soft pastel, flat lighting, plastic toy render, round bulky robot, missing sword, missing green ring, bad typography, low contrast, extra limbs, messy composition.