C253 Great Scientist 4k(2)

In the past, Merckx Kingdom was just a small kingdom next to a kingdom. It was next to an empire. The current king of Merckx Kingdom was the king of Merckx Kingdom. He was originally a duke.

When the humans on Earth hadn't transmigrated to Another World yet, and Bis Empire was focused on dealing with Alliance of Four Nations, duke MacArthur hid his strength and bided his time