Rule 34 Dev - 1boy 1girl bad_id bad_pixiv_id black_hair blush breast_press flower gakuran grey_hair height_difference hetero highres hirose_koichi hug jojo_no_kimyou_na_bouken long_hair open_mouth purple_eyes rose school_uniform serafuku skirt smile touming_renjian very_long_hair wavy_hair yamagishi_yukako|7318084878