1girl, arknights, bikini, black_jacket, blue_bikini, blue_hair, blue_sky, breasts, ch'en_(arknights), ch'en_the_holungday_(arknights), cleavage, cloud, day, ddddairy, dragon_horns, flower, hair_flower, hair_ornament, horns, jacket, knees_up, long_hair, long_sleeves, looking_at_viewer, medium_breasts, outdoors, red_eyes, red_flower, sitting, sky, solo, swimsuit, thighs, very_long_hair, water