13otsu, 4girls, alternate_costume, azur_lane, bikini, bismarck_(azur_lane), black_bikini, black_hair, blonde_hair, blue_hair, blue_one-piece_swimsuit, breasts, casual_one-piece_swimsuit, day, flat_chest, friedrich_der_grosse_(azur_lane), grey_hair, hair_over_one_eye, hanging_breasts, hat, huge_breasts, jacket, large_breasts, leaning_forward, long_hair, manjuu_(azur_lane), multiple_girls, ocean, official_alternate_costume, one-piece_swimsuit, open_clothes, open_jacket, outdoors, parfait, picnic_basket, splashing, straw_hat, summer, swimsuit, thigh_gap, u-556_(azur_lane), very_long_hair, yellow_eyes, z46_(azur_lane), z46_(her_first_summer)_(azur_lane)