2girls, alexi_oekaki, animal_ears, azur_lane, bikini, blush, breasts, chiyoda_(azur_lane), chiyoda_(shimmering_surf)_(azur_lane), cleavage, closed_mouth, fox_ears, grey_hair, hair_ornament, hand_on_another's_shoulder, hand_on_another's_stomach, kaga_(azur_lane), kaga_(everlasting_killing_stone)_(azur_lane), large_breasts, long_hair, looking_at_viewer, mask, mask_on_head, multiple_girls, official_alternate_costume, outdoors, red_bikini, red_hair, smile, swimsuit