1girl, ass, bad_pixiv_id, black_collar, black_hair, blush, bodystocking, book, closed_mouth, collar, curtains, from_behind, fur_collar, genshin_impact, hat, indoors, long_hair, long_sleeves, looking_at_viewer, mona_(genshin_impact), purple_headwear, shoulder_blades, solo, sunano_reona, twintails, window, witch_hat