Chieri Sono, Swimsuit, AKB0048

The image features Chieri Sono, an anime character from AKB0048, standing by a pool in a swimsuit. She has long blue hair and is wearing a white and blue swimsuit with a ruffled skirt. Her left hand rests on the railing of the pool's edge, while her right arm hangs down beside her. The background is blurred, but it appears to be an indoor setting with a large window or glass wall behind the pool. The overall atmosphere suggests that this image was taken at some kind of promotional event for AKB0048.