The Outer City of Balhae III

Of course, if this happens in the Human Continent, Arial would not take it so seriously. Instead he would send Leander to take care of it.

Arial even believes that if this happens in the Human Continent even before the news arrived at his desk, the one asking for such a duel would already be dead, and the head of that person would already would be send to his office

One on one duel tradition is almost extinct in the Human Continent and is only practiced among the knightly houses. 

Knightly houses are another term that had surfaced after the establishment of the Empire. Arial had employed many Knights that used to learn at the Knight Academy into his military

This has solved the insufficient commanders in the military

Most of them are given the ranks of commander to lead a small unit of army under his command.