1boy, 4girls, <, abs, adjusting_eyewear, asada_yo, ass, bare_shoulders, beach, beach_umbrella, bent_over, bikini, bikini_skirt, black_hair, black_shorts, blonde_hair, blue_eyes, blue_sky, blue_swim_trunks, blunt_bangs, blurry, blush, blush_stickers, bokeh, breasts, brown-framed_eyewear, brown_eyes, brown_hair, brown_shorts, cleavage, collarbone, constricted_pupils, cowboy_shot, criss-cross_halter, day, depth_of_field, double_vertical_stripe, embarrassed, eyewear_on_head, floating_hair, frenda_seivelun, frilled_bikini, frills, from_side, gradient_sky, grin, hair_between_eyes, hair_intakes, halterneck, hamazura_shiage, hand_on_lap, hand_on_own_leg, head_tilt, holding, holding_innertube, hugging_object, innertube, item_(toaru), kinuhata_saiai, large_breasts, leaning_forward, light_brown_hair, long_hair, looking_at_viewer, looking_to_the_side, male_swimwear, medium_breasts, medium_hair, midriff, midriff_peek, mugino_shizuri, multiple_girls, multiple_views, ocean, open_mouth, outdoors, parted_lips, purple_bikini, purple_tank_top, red-tinted_eyewear, red_bikini, sand, shiny_skin, short_hair, shorts, sideboob, sitting, skirt, sky, small_breasts, smile, standing, sunglasses, surprised, swimsuit, takitsubo_rikou, tank_top, thigh_gap, tinted_eyewear, toaru_kagaku_no_railgun, toaru_kagaku_no_railgun_s, toaru_majutsu_no_index, umbrella, upper_body, very_short_hair, water, white_background, white_bikini, white_skirt