1girl, adjusting_buruma, adjusting_clothes, ass, blue_archive, blush, buruma, from_behind, gym_uniform, halo, jacket, long_hair, looking_back, official_alternate_costume, open_mouth, ponytail, purple_eyes, purple_hair, rei_(ilust9999), solo, sweat, track_jacket, yuuka_(blue_archive), yuuka_(track)_(blue_archive)