Okay, kiddo - do you know what a city is? It's a big place where lots and lots of people live and work and play. But some cities have parts that are different from the rest. These parts are usually called the "inner city."
The inner city is an area in the middle of the big city where many of the buildings are very old and run down. The streets might not be very clean, and there might be garbage or graffiti on the walls. Sometimes, people who don't have a lot of money live in the inner city because it's less expensive to live there.
But even though the buildings and streets might not look very nice, there are still lots of people who call the inner city home. In fact, many people who live in the inner city are very passionate about their community and work hard to make it a better place to live. They might organize events, clean up the streets, or work together to improve their schools or parks.
So, that's the inner city in a nutshell. It's an area in the middle of a big city where many buildings are old and run down, but lots of people still call it home and work hard to make it a great place to live.