2girls, animal_ears, armpits, arms_behind_head, bikini, bikini_skirt, black_bikini, black_hair, blue_archive, blue_eyes, blue_sky, cat_ears, closed_mouth, cloud, competition_swimsuit, expressionless, frilled_bikini, frills, frown, halo, looking_at_viewer, low_ponytail, multiple_girls, off-shoulder_bikini, off_shoulder, official_alternate_costume, one-piece_swimsuit, outdoors, parted_lips, red_eyes, serika_(blue_archive), serika_(swimsuit)_(blue_archive), shiroko_(blue_archive), shiroko_(swimsuit)_(blue_archive), sky, swimsuit, twintails, v-shaped_eyebrows, vardan, water, white_hair, wolf_ears