1girl, blue_shorts, bra, breasts, closed_mouth, collarbone, green_eyes, grey_hair, hiroki_(yyqw7151), navel, panties, panties_under_shorts, shirt, short_hair, shorts, simple_background, small_breasts, standing, stomach, underwear, undressing, white_background, white_bra, white_panties, white_shirt, yama_no_susume, yukimura_aoi