1girl, armpits, bikini, black_bikini, blue_eyes, blue_sky, breasts, brown_jacket, cleavage, day, eyewear_on_head, feet_out_of_frame, girls'_frontline, hair_ribbon, halterneck, hands_up, jacket, kalina_(girls'_frontline), long_hair, looking_at_viewer, medium_breasts, nachi-kun, navel, ocean, open_clothes, open_jacket, open_mouth, orange_hair, out_of_frame, ribbon, side-tie_bikini_bottom, sky, smile, solo, standing, stomach, sunglasses, swimsuit