1girl, ahoge, ass, blue_archive, blue_buruma, blue_hair, bottle, breasts, buruma, faucet, from_behind, gym_uniform, leaning_forward, long_hair, looking_at_viewer, looking_back, official_alternate_costume, open_mouth, shirt, short_sleeves, solo, sparkle, star_sticker, sticker_on_face, super_zombie, twitter_username, water, water_bottle, yuuka_(blue_archive), yuuka_(track)_(blue_archive)