kantai collection, satsuki (kantai collection), ichidai taisa, simple background, grey background, 1girl, adjusting clothes, adjusting swimsuit, ahoge, alternative costume, ass, bare arms, bare shoulders, black swimsuit, blonde, blush, cowboy shot, dutch angle, eyebrows visible through hair, female, from behind, hair tie, hand in swimsuit, hand on hip, hand under clothes, hand under swimsuit, long hair, looking at viewer, looking back, low twintails, one-piece swimsuit, solo, spread legs, standing, sukumizu, swimsuit, thighhighs, tied hair, twintails, very long hair, yellow eyes