Rule 34 Dev - 1girl amano_hina_(tenki_no_ko) armpits arms_up bed_sheet black_hair blue_eyes blue_one-piece_swimsuit blush breasts closed_mouth collarbone competition_swimsuit jewelry long_hair looking_at_viewer lying medium_breasts on_back one-piece_swimsuit pendant pillow solo swimsuit tenki_no_ko yyi|15771522546