1girl, akeyama_kitsune, armpits, arms_up, azur_lane, bikini, black_background, black_bikini, blush, breasts, closed_mouth, covered_nipples, from_side, huge_breasts, long_hair, looking_to_the_side, o-ring, o-ring_bikini, official_alternate_costume, orange_eyes, red_hair, sideboob, solo, sweat, swimsuit, underboob, upper_body, zara_(azur_lane), zara_(poolside_coincidence)_(azur_lane)