1boy, 1girl, bikini, black_bikini, blue_sky, blush, breasts, brown_eyes, brown_hair, cleavage, collarbone, faceless, faceless_male, groin, hair_ornament, hairclip, holding_hands, k3rd, looking_at_viewer, medium_hair, misaka_mikoto, ocean, open_mouth, outdoors, parted_bangs, pov, sky, small_breasts, smile, solo_focus, sparkle, stomach, sunlight, swimsuit, toaru_kagaku_no_railgun, toaru_majutsu_no_index, upper_body, water, water_drop