2boys, 2girls, bag, bangs, bare_arms, bare_shoulders, bikini, blush, boat, closed_mouth, collarbone, comic, day, emphasis_lines, eyebrows_visible_through_hair, flying_sweatdrops, greyscale, hair_between_eyes, hair_ribbon, jacket, long_hair, long_sleeves, monochrome, multiple_boys, multiple_girls, outdoors, oversized_clothes, ponytail, ribbon, rope, shirt, short_sleeves, side-tie_bikini, sitting, standing, swimsuit, very_long_hair, walking, water, watercraft