Rule 34 Dev - 2boys al_(arupaka) ao_no_exorcist belt black_hair blacky book brothers buckle formal_clothes glasses kuro_(ao_no_exorcist) male_focus multiple_boys multiple_tails necktie okumura_rin okumura_yukio pointy_ears school_uniform shirt siblings striped_necktie striped_neckwear suit tail tongue|2581612137