Rule 34 Dev - 2boys blue_sweater brown_eyes brown_hair building cosplay flag gumi gumi_(cosplay) hands_on_own_face hatsune_miku hatsune_miku_(cosplay) helmet hokuto_no_ken hood hoodie jagi jobiko kenshiro kokuoh_(hokuto_no_ken) male_focus matryoshka_(vocaloid) multiple_boys parody short_hair sweater vocaloid yellow_background|6752602584