In A Fantasy Earth, So I Created An Empire From The Scratches

Ardent expected to wake up in his bedroom after going to sleep after a drunken spree. Instead, he end up in an unknown bed, in an unknown room, in what seem to be medieval time. And that's when he knew, things about to get complicated. Now stuck in what seem to be the past, he was not the slightest bit amused, except- "Wait, magic existed?!" In a world like his own, yet not at the same time, Ardent decided to live life as his own and do what he want. However, he soon realized that in the world of Magic, danger is always around in the corner, and he alone could not protect the people he soon come to care of. So, what does a man in his thirties in a child body does when he come to such realization? Well, build a new nation of course!