Rule 34 Dev - 3boys angry blush demon_slayer dual_persona eye_patch from_behind gay hair_down kimetsu_no_yaiba kimono kyu_717 long_hair_male looking_back male male_only monochrome muscular muscular_male off_shoulder open_kimono pec_grasp pecs rengoku_kyoujurou sweat threesome uniform upper_body uzui_tengen veiny_muscles yaoi|9584256832