Okay, so ofuda is like a little piece of paper that people in Japan use to protect themselves from bad things. It usually has some nice words or pictures written on it, like a special prayer or a picture of a god.
People might put ofuda in their homes, cars, or even carry them with them to make sure they stay safe. Some ofuda are made by special priests who have been trained to make them just right.
Basically, ofuda is something that can help make bad things go away and good things come instead. It's like a tiny superpower to protect you from all kinds of scary stuff!