2boys, 5girls, >_<, ^^^, animal, bikini, bird, black_hair, blue_eyes, blue_hair, blush, breasts, cleavage, collarbone, day, eel, fang, fish, green_bikini, hair_between_eyes, hat, inuyama_akari, inuyama_aoi, jacket, kagamihara_nadeshiko, kuromasu, large_breasts, light_brown_hair, long_hair, multiple_boys, multiple_girls, open_clothes, open_jacket, open_mouth, outdoors, pink_hair, purple_eyes, river, shima_rin, short_hair, siblings, sisters, skin_fang, smile, sparkle, straw_hat, swimsuit, thick_eyebrows, tree, white_bikini, white_jacket, yurucamp