The answer is: buy the rights from the parent company and invest in a location approved by the parent company.
In franchise, the purchaser of the franchise had the right to use the brand of an already successful product and sell their products in their behalf.
To start it, the purchaser need to buy rights from the parent company (usually the rights need to be renewed every year) and provide the location and equipment according to the parent company's standard. The parent company will provide the employees training and product pricing that can be implemented.