1girl, ass, black_footwear, black_hair, black_shirt, blue_archive, blue_buruma, blue_eyes, blush, breasts, buruma, dema_hmw, gym_uniform, halo, jacket, legs_up, long_hair, looking_at_viewer, lying, official_alternate_costume, on_back, ponytail, purple_hair, shirt, shoes, short_sleeves, solo, steam, steaming_body, sweat, thighs, track_jacket, unworn_jacket, wet, yuuka_(blue_archive), yuuka_(track)_(blue_archive)