1girl, s, between_legs, blue_archive, blue_buruma, blush, bottle, bottle_to_cheek, breasts, buruma, gym_shirt, gym_uniform, halo, hand_between_legs, holding, holding_bottle, id_card, lanyard, long_hair, looking_at_viewer, medium_breasts, official_alternate_costume, ponytail, pov, purple_eyes, purple_hair, reel_(riru), shirt, short_sleeves, sitting, solo_focus, star_sticker, sticker_on_face, sweat, water_bottle, yuuka_(blue_archive), yuuka_(track)_(blue_archive)