A network drive is kind of like a magical box that can hold all of your computer files, but it's not actually on your computer. It's on a big computer that lots of people can connect to, like a secret clubhouse for grown-ups. When you connect to this magical box from your computer, it's like you're going into the clubhouse and getting your own secret locker to store your things in.
And the best part about this magical box is that other people you know can also connect to it and store their things in their own secret lockers. That way, you can all share things with each other and work on projects together without having to physically be in the same place.
So, if you ever hear someone talk about a network drive, just think of it as a magical locker that you can access from your computer that lets you store and share your files with other people.