1girl, amatsukaze_(kancolle), arm_behind_back, bare_shoulders, bikini, blush, breasts, choker, closed_mouth, collarbone, front-tie_bikini_top, front-tie_top, hair_ornament, hand_up, kantai_collection, long_hair, navel, side-tie_bikini_bottom, simple_background, small_breasts, solo, stomach, swimsuit, takanashi_kei_(hitsujikan), thighs, twintails, water, white_hair