1girl :< armband bad_id bad_pixiv_id black_skirt black_thighhighs blonde_hair blue_jacket blurry boruhis closed_mouth crescent crescent_pin dutch_angle eyebrows jacket kantai_collection long_hair long_sleeves low_twintails lying navel necktie panties pantyshot satsuki_(kancolle) satsuki_kai_ni_(kancolle) school_uniform serafuku shadow sidelocks skirt solo thigh_strap thighhighs twintails underwear upskirt v-shaped_eyebrows white_background white_panties