Is OneCoin real or fake?

I've been hearing a lot about OneCoin lately, but I'm still not sure if it's a legitimate cryptocurrency or a scam. Could you help me understand? I've seen some promising claims about its potential returns, but I've also read stories of people losing money. What's the truth behind OneCoin? Is it a safe investment, or should I be wary of potential fraud? What kind of research should I do before deciding to invest in OneCoin? Are there any regulatory bodies that oversee its operations, and are there any legal issues surrounding it? I'd appreciate any insights you could provide to help me make an informed decision.