1girl arm_behind_head arm_up baseball_cap belt black_background black_gloves breasts cleavage colored_skin commentary_request covered_eyes fingerless_gloves gloves gradient_background grey_eyes hat hataraku_saibou hataraku_saibou_black highres holding holding_weapon large_breasts leg_belt legs looking_at_viewer open_clothes open_shirt shirt simple_background solo tsukunendo u-1196 weapon white_blood_cell_(hataraku_saibou) white_hair white_shirt white_skin