Rule 34 Dev - 2020 20s 4girls blush bow braid brown_eyes brown_hair brown_sweater_vest early_teens female flower hair_bow hair_flower hair_ornament happy_birthday highres long_hair looking_at_viewer matching_hair/eyes mini_person misaka_mikoto multiple_girls open_mouth open_smile preteen preteen_girl red_bow sakugawa_middle_school_uniform saten_ruiko school_uniform serafuku shirai_kuroko shirt short_hair simple_background size_difference smile summer_uniform sweater_vest teenage teenage_girl tied_hair to_aru_kagaku_no_railgun to_aru_majutsu_no_index tokiwadai_middle_school_uniform twin_braids uiharu_kazari upper_body white_shirt yuuki_r01|4060829698