The municipal corporation existing as the Village of Sunbury under the general statutes of the State of Ohio shall continue to be a body politic and corporate under the same name under this Charter. When the Village of Sunbury becomes a city in the manner provided by the Constitution and laws of the State of Ohio, it shall be known as the "City of Sunbury." As used in this Charter, "Municipality" shall mean either the Village or City of Sunbury, as appropriate.