arima kana, hoshino aquamarine, oshi no ko, absurdres, highres, 1boy, 1girl, bare shoulders, bikini, blush, breasts, clothed sex, collarbone, feet, grabbing another's breast, groping, hetero, if they mated, implied sex, jacket, legs, medium breasts, monochrome, moon, navel, night, night sky, ocean, open mouth, outdoors, sandals, sex, short hair, sky, stomach, straddling, strap slip, swimsuit, tears, thighs, toes, tree, unworn jacket, vaginal