A 26-year-old Japanese woman with shoulder-length black hair, fully submerged underwater in an indoor pool. She is wearing a burgundy bra and matching burgundy panties, the fabric appearing water-saturated, clinging tightly to her body with darker tones and realistic wet texture. Her skin is glistening with water sheen, and her hair flows weightlessly in the water. She has a cheerful expression on her face. Full body shot, including the face, captured with clear underwater lighting, high-resolution photographic detail, realistic water refraction, and bubbles.