1girl all_fours ass bangs bare_shoulders black_dress black_hair blue_archive boombox butterfly_hair_ornament china_dress chinese_clothes closed_mouth double_bun dress grey_eyes hair_bun hair_ornament halo highres kisaki_(blue_archive) long_hair musical_note pelvic_curtain shade_of_trees simple_background sleeveless sleeveless_dress solo top-down_bottom-up twintails white_background