How to buy Klay on MetaMask?

For those looking to purchase Klay tokens on MetaMask, the process can be a bit daunting. Could you elaborate on the key steps involved? Understanding the initial setup of MetaMask, connecting it to a compatible exchange, ensuring sufficient funds are available, and navigating the token swap or purchase interface are all crucial elements. Could you provide a step-by-step breakdown of how to securely and efficiently buy Klay tokens on the MetaMask platform? This would be especially beneficial for those new to the cryptocurrency space and looking for a clear, concise guide to follow.