A medium shot from a slight low angle features a single girl standing alone, captured mid-transformation within her unified body. She has purple eyes and a small ahoge, her expression a mix of surprise and determination. On the left side, her short, choppy aqua hair frames her face and she is fully dressed in cozy everyday clothes: an oversized cream-colored cable-knit cardigan worn naturally over a modest top, paired with a light blue pleated skirt and white ankle socks. No bodysuit, armor, or metallic fabric shows through or peeks out from beneath her soft civilian clothes. On the right side, her long, flowing twin braids cascade down and she wears a sleek silver and sapphire bodysuit leotard with polished armored gloves. No cardigan, skirt, or casual fabric drapes over or clings to her battle attire; the armor and bodysuit rest directly against her form. At the seam where the two halves meet, her cardigan and skirt dissolve naturally: the thick knit wool softens into translucent mist and tiny water droplets, gradually giving way to the gleaming bodysuit beneath, as though the fabric itself is melting into light and re-forming into armor. Along that boundary, faint magical particles drift like fireflies made of stardust, and soft ribbons of pale blue and silver light swirl gently around the seam. Subtle, elegant arcane runes glow faintly along the line where fabric dissolves into armor, barely visible and never gaudy, like whispered enchantments written in light. Her hands rest naturally at her sides, the left hand soft and bare, the right hand encased in armored gauntlets. She stands in a serene water-garden at night, the still surface reflecting an endless starry sky under silver moonlight. The visual style is soft cel-shaded anime, characterized by delicate silver and blue rim lighting and a cool, ethereal atmosphere.