1girl, adjusting_hair, ass, black_shirt, blue_archive, blue_background, blue_buruma, blue_eyes, buruma, from_behind, gradient_background, gym_uniform, halo, hands_in_hair, holding, holding_hair, hoshiko_(419401x), looking_at_viewer, official_alternate_costume, purple_hair, shirt, solo, thighs, tying_hair, yuuka_(blue_archive), yuuka_(track)_(blue_archive)