Rule 34 Dev - 1girl arm_up bad_arm black_bra blue_eyes bokutachi_wa_benkyou_ga_dekinai bra braid breasts cleavage collarbone colored_pencil_(medium) kirisu_mafuyu long_hair looking_at_viewer medium_breasts pink_hair simple_background solo traditional_media triangle_mouth underwear upper_body white_background y_takeshinu_wan|20725727022