1girl, armpits, bikini, bikini bottom removed, bikini top only, blush, bottle, bottomless, choker, convenient censoring, eyewear on head, greyscale, hair ornament, hair scrunchie, hand in own hair, holding, holding hair, long hair, looking at viewer, monochrome, mouth hold, navel, one side up, original, sanshoku amido, scrunchie, sitting, smile, solo, spread legs, sunglasses, swimsuit, untied, untied bikini, water bottle