서준혁

Visual novel character sprite, anime cel-shaded style, clean lineart, flat colors with simple soft shading. Full-body standing portrait of a rebellious teenage boy with spiky black hair and defiant dark eyes, school uniform jacket worn open over a black tee with a loose untied necktie, earphones around his neck, lean build. Facing the viewer, relaxed neutral standing pose with arms at the sides, whole body from head to feet visible. Neutral expression. The character must be fully isolated on a genuinely transparent background (PNG with alpha channel): no background, no floor, no shadow, no glow, no vignette, no checkerboard pattern.