1girl, arm_behind_back, bare_shoulders, bocchi_the_rock!, bra, breasts, closed_mouth, collarbone, green_eyes, grey_background, hair_between_eyes, hiroki_(yyqw7151), kita_ikuyo, looking_back, navel, one_side_up, panties, red_hair, sidelighting, simple_background, small_breasts, solo, strap_gap, underwear, underwear_only