Rule 34 Dev - 1girl 2boys animal black_hair book btmr_game bun_cover couch dog gintama glasses grey_eyes grey_hair holding holding_book japanese_clothes kagura_(gintama) lying mouth_hold multiple_boys nose_bubble on_back opaque_glasses open_mouth orange_hair sadaharu sakata_gintoki shimura_shinpachi signature sitting sleeping teeth_hold|16961696739