1girl, armpits, bikini, blue_sky, breasts, brown_hair, cleavage, cloud, day, honshiro_nikori, hyouka, ibara_mayaka, large_breasts, looking_at_viewer, mountainous_horizon, o-ring, o-ring_bikini, o-ring_top, ocean, outdoors, red_eyes, short_hair, side-tie_bikini_bottom, sitting, sky, solo, splashing, swimsuit, wariza, water, white_bikini