1girl, black_one-piece_swimsuit, blue_eyes, breasts, cleavage, competition_swimsuit, feet_out_of_frame, girls'_frontline, grey_background, highleg, highleg_swimsuit, kotoha_(kotoha65), medium_hair, one-piece_swimsuit, pink_hair, ponytail, simple_background, small_breasts, solo, st_ar-15_(girls'_frontline), swimsuit