4girls, aomi_one, ass, black_hair, black_shirt, blue_archive, blue_buruma, blue_eyes, blue_jacket, blurry, blush, breasts, buruma, from_behind, gym_uniform, halo, jacket, long_hair, looking_back, multiple_girls, off_shoulder, official_alternate_costume, outdoors, ponytail, shirt, short_sleeves, solo_focus, sportswear, star_(symbol), star_sticker, sticker_on_face, stylus, tablet_pc, thighs, track_jacket, yuuka_(blue_archive), yuuka_(track)_(blue_archive)