1girl, ass, ass_focus, blue_eyes, breasts, competition_swimsuit, crotch, innertube, kawaii_dake_ja_nai_shikimori-san, long_hair, looking_ahead, lying, medium_breasts, on_stomach, one-piece_swimsuit, pink_hair, ponytail, rx53l5, shadow, shikimori_(kawaii_dake_ja_nai), simple_background, smile, swimsuit, two-tone_swimsuit, white_background