1girl, amagami, black_hair, black_one-piece_swimsuit, breasts, brown_eyes, competition_swimsuit, covered_navel, highleg, highleg_swimsuit, looking_at_viewer, medium_breasts, nanasaki_ai, one-piece_swimsuit, serizawa_(serizawaroom), short_hair, simple_background, smile, solo, standing, swimsuit, two-tone_swimsuit