A 34-year-old Japanese woman with medium black hair, wearing a black T-shirt and black panties, fully submerged underwater in a lake. The subject is soaking wet from head to toe, with wet hair clinging to her skin and face, and her black fabric clothing is water-saturated, clinging to her body, darkened, and heavy with water weight. She has a cheerful expression on her face. Full body shot showing the entire figure underwater, captured with clear, high-resolution underwater photography, natural light filtering through the water surface, shimmering water sheen, realistic skin texture, and wet-look aesthetic.