1girl, blue_archive, blue_eyes, blue_shirt, bottle, chair, halo, holding, holding_bottle, indoors, long_hair, official_alternate_costume, on_chair, ponytail, purple_hair, shaka_(staito0515), shirt, short_sleeves, sitting, solo, star_tattoo, tattoo, water_bottle, yuuka_(blue_archive), yuuka_(track)_(blue_archive)