1girl, bare arms, beach, bikini, blue sky, breasts, brown eyes, brown hair, day, ganbare douki-chan, kouhai-chan (douki-chan), large breasts, looking at viewer, medium hair, mole, mole on breast, navel, outdoors, red bikini, side-tie bikini bottom, sky, smile, solo, standing, swimsuit, thick eyebrows, vergil mon, wading