Rule 34 Dev - 1boy 1human 1male 3d 3d_(artwork) 3d_model brown_eyes brown_hair dark_blue_background japanese kazuworks kiryu_kazuma male male_focus male_only male_solo muscles muscular muscular_male red_thong ryuu_ga_gotoku skimpy_thong solo solo_focus solo_male tan-skinned_male tan_skin thong yakuza_(series)|10527961192