1girl, armpits, arms_up, black_hair, black_one-piece_swimsuit, blush, breasts, cameltoe, casual_one-piece_swimsuit, collarbone, day, flower, green_eyes, hibiscus, highleg, highleg_swimsuit, kurosawa_dia, long_hair, love_live!, love_live!_sunshine!!, lying, medium_breasts, mignon, mole, mole_under_mouth, navel, o-ring, o-ring_swimsuit, on_back, one-piece_swimsuit, open_mouth, outdoors, partially_submerged, solo, stomach, swimsuit, thighs, water, wet