1girl, :d, absurdres, ahoge, arm_support, ass, black_choker, black_serafuku, black_skirt, blue_sky, blurry, boo_tao_(genshin_impact), brown_hair, building, cameo, choker, collarbone, commentary_request, depth_of_field, envelope, flower, flower-shaped_pupils, genshin_impact, hair_between_eyes, hair_flower, hair_ornament, hairclip, highres, holding, holding_envelope, holding_letter, hu_tao_(genshin_impact), indoors, knees_up, letter, long_hair, looking_at_viewer, love_letter, parted_lips, pleated_skirt, red_eyes, ronya_(ronya_s2), school_uniform, serafuku, sidelocks, sitting, skirt, sky, skyline, skyscraper, smile, solo, symbol-shaped_pupils, twintails, window