Unified Earth Information Field. As it turned out, fortunately for Mikhail, it exists. In his world, he is only a hopeless patient. In this - full of strength, enthusiasm and thirst for action. And even if it's only the eleventh century, what a difference it makes! In a relatively short time, he managed to make friends, rise from serf to governor, build a city. This world taught him a lot, something he had no idea about. But he is also ready to give humanity what he knows himself. But living alone, with the support of allies, will not work. Other people's wealth always beckons the greedy for profit. It just so happened that his town Pogranichny turned into a coveted prey. So what now? Sit and wait for a hot hello to arrive from? Here are the pipes! Because the best way to defend is attack.