1girl, black_buruma, black_shirt, blue_archive, blue_jacket, buruma, gym_shirt, gym_uniform, halo, jacket, jacket_partially_removed, locker, locker_room, navel, navel_focus, official_alternate_costume, open_mouth, ponytail, purple_eyes, purple_hair, shirt, short_sleeves, solo, spread_navel, standing, star_sticker, sticker_on_face, stomach, track_jacket, ushiki_yoshitaka, wavy_mouth, yuuka_(blue_archive), yuuka_(track)_(blue_archive)