An interior minister is like a boss or manager for a really big group of people who are in charge of keeping a country safe and happy. They make sure that everyone follows the rules and laws so that bad things don't happen. The interior minister helps to protect the country's borders by making sure people who come in are allowed to be there and don't cause any harm. They also work with other important people in the government to make important decisions about how the country is run. Basically, the interior minister is like a superhero who keeps everyone safe and happy!