Makoto Kikuchi, Vivid Bikini, Idolmaster

The image depicts Makoto Kikuchi from the Japanese idol group The Idolmaster, wearing a black and white bikini. She has short gray hair with a bow on the left side and is standing in shallow water at an outdoor pool or beach area. Her right leg is slightly bent and her foot is submerged in the water, while her left leg remains straight and above the waterline. She appears to be posing for a photo shoot or promotional event.