koshimizu sachiko/輿水幸子

koshimizu sachiko, a character from The Idolmaster Cinderella Girls with short light purple hair, brown eyes, and a petite build with small breasts, is lying on her back inside a rectangular, clear vinyl pool. She wears a high-cut, turquoise bikini with a halter top design. Her body is fully submerged in the water, which is filled with several large, clear ice cubes. Her arms are spread out to the sides, resting on the bottom of the pool, and she looks up towards the viewer with a blissful, relaxed expression. Her light purple hair floats gently around her face and shoulders. The scene is viewed from directly above, providing a top-down perspective that clearly shows the pool, the water, and her body. The image style is highly detailed and vivid, with a focus on clear, translucent water and the sharp contrast of the blue bikini and pale skin, set within the clean, geometric shape of the pool. The overall atmosphere is one of cool, serene relaxation.