1girl, animal_ear_fluff, animal_ears, bee_doushi, bicycle, bike_jersey, bike_shorts, blue_archive, blue_eyes, blue_sky, bottle, breasts, cleavage, cloud, day, extra_ears, grey_hair, halo, holding, holding_bottle, looking_at_viewer, medium_breasts, official_alternate_costume, outdoors, shiroko_(blue_archive), shiroko_(cycling)_(blue_archive), sky, solo, water_bottle, wolf_ears