Ok kiddo, so there's this group of people called the Székelys who live in Transylvania, which is a place in Romania. They've been there for a really long time, like more than a thousand years!
Now, some people say that the Székelys are descendants of an old group of warriors who lived in Central Asia a long, long time ago. They traveled across Europe and eventually settled in Transylvania.
Other people say that maybe the Székelys are related to a group of people called the Huns, who were famous warriors from a long time ago.
But no matter where they came from, the Székelys are a really important part of Transylvania's history and culture. They have their own language, traditions, and even flag! Pretty cool, huh?