1girl, animal_ears, ass, ass_focus, bent_over, bicycle, bike_jersey, bike_shorts, blue_archive, blue_eyes, blue_sky, bodysuit, cycling_uniform, from_behind, from_below, grey_hair, hair_ornament, hairclip, halo, looking_at_viewer, miya_ur, official_alternate_costume, shiroko_(blue_archive), shiroko_(cycling)_(blue_archive), sky, solo, sweat, wolf_ears