2girls, ;d, alternate_costume, animal_ears, arknights, ass, aunt_and_niece, blemishine_(arknights), blonde_hair, blue_eyes, blue_sky, breasts, horse_ears, indoors, large_breasts, long_sleeves, lying, multiple_girls, on_back, on_stomach, one_eye_closed, pants, pillow, ponytail, samip, shirt, sky, smile, swept_bangs, tail, whislash_(arknights), white_pants, white_shirt, window, yellow_eyes