2girls, animal_ears, arm_up, armpits, ass, atago_(azur_lane), azuma_(azur_lane), azur_lane, black_hair, blush, breasts, cleavage, closed_mouth, collarbone, covered_navel, dog_ears, large_breasts, looking_at_viewer, multiple_girls, naked_towel, onsen, orange_eyes, parted_lips, ponytail, sea_nami, sitting, smile, towel, water