1girl, animal_ear_fluff, animal_ears, bike_jersey, bike_shorts, blue_archive, blue_eyes, bottle, breasts, extra_ears, grey_hair, hair_ornament, halo, holding, holding_bottle, looking_at_viewer, official_alternate_costume, shiroko_(blue_archive), shiroko_(cycling)_(blue_archive), solo, sweat, unzipped, water_bottle, wolf_ears, x_hair_ornament, yuchiberu