1girl, alternate_costume, animal_ears, arknights, black_hair, black_sailor_collar, black_skirt, blue_sky, book, breasts, day, hair_between_eyes, hand_on_railing, holding, holding_book, horizon, large_breasts, long_hair, long_sleeves, looking_at_viewer, looking_to_the_side, midriff_peek, neckerchief, ocean, outdoors, parted_lips, pleated_skirt, red_eyes, red_neckerchief, sailor_collar, school_uniform, serafuku, shokuyou_koori, skirt, sky, solo, tail, tail_through_clothes, texas_(arknights), very_long_hair, wolf_ears, wolf_girl, wolf_tail