1girl, blue_archive, blue_buruma, blue_eyes, blush, bottle, buruma, from_behind, gym_shirt, halo, holding, holding_bottle, long_hair, looking_at_viewer, looking_back, miyakawa106, official_alternate_costume, plastic_bottle, ponytail, shirt, simple_background, solo, sweat, thighs, water_bottle, white_background, yuuka_(blue_archive), yuuka_(track)_(blue_archive)