1girl arm_strap belt black_legwear breasts brown_hair collared_shirt contrapposto cowboy_shot grey_background highres jacket leaf leaf_background legwear_under_shorts long_hair long_sleeves makise_kurisu necktie neko_nomaru off_shoulder pantyhose purple_eyes red_neckwear shirt short_shorts shorts simple_background small_breasts solo steins;gate straight_hair