1girl, bikini, blonde_hair, blush, breasts, closed_mouth, hair_ornament, hoshino_ruby, long_hair, navel, nyayuu96, one_side_up, oshi_no_ko, pink_bikini, pink_eyes, sidelocks, simple_background, smile, solo, star-shaped_pupils, star_(symbol), star_hair_ornament, stomach, swimsuit, symbol-shaped_pupils, white_background