4girls, aug_para_(girls'_frontline), aug_para_(river_trekking_in_fall)_(girls'_frontline), breasts, camera, cellphone, copyright_name, cup, disposable_cup, drinking_straw, english_text, girls'_frontline, holding, holding_camera, holding_cup, holding_phone, long_hair, model_l_(girls'_frontline), model_l_(up_into_the_blue_sky)_(girls'_frontline), multiple_girls, official_alternate_costume, official_wallpaper, phone, rex_zero_1_(girls'_frontline), rex_zero_1_(heart-aflutter_trilogy)_(girls'_frontline), smartphone, sp9_(girls'_frontline), sp9_(slumbering_starry_dream)_(girls'_frontline), stone_walkway