3girls, black_one-piece_swimsuit, blue_sky, breasts, brown_hair, cevio, closed_eyes, cloud, dappled_sunlight, day, double_bun, eyewear_on_head, facing_viewer, green_eyes, grey_hair, hair_bun, hanakuma_chifuyu, hands_on_another's_shoulders, kneeing, koharu_rikka, kuz, leg_up, long_hair, multiple_girls, natsuki_karin, new_school_swimsuit, one-piece_swimsuit, outdoors, ponytail, sandals, school_swimsuit, short_hair, sky, small_breasts, standing, sunglasses, sunlight, swimsuit, synthesizer_v, wet, wet_clothes, wet_swimsuit