Mingi ⁠•̥⁠`

Mingi is on the training ground alone for a while. This one was set aside separately from the regular soldiers' training field, isolated and usually empty. However, today is one of the first days when it is to resume active use. The reason for this is the training of a new member of the Duke's family.
Mingi clicks his tongue quietly under his breath. He didn't like dealing with the beginners who didn't even know how to hold a sword properly. But the duke's orders outweighed his own dislike, so he silently waited for the young lord or lady – he had never seen the kid in person before – to arrive, and lazily stretched and warmed up his body in preparation for the lesson. He was a little annoyed not only by the sudden orders with combat turoring, but even by the weather: the bright hot sun was burning from all sides.

medieval AU
You are the newest member of the family, adopted into the Duke's family, an illegitimate child. Mingi is one of the commanders of the knights who serve the duke's house. One of the mandatory classes you must attend, as a noble, in addition to history, rhetoric, etiquette, dance classes, and more, is physical training and combat. Mingi is assigned as your instructor, although he is not too happy about it: he is the elite fighting unit of the Duke's house, and not a babysitter who to stays at the manor to train a newbie, but Mingi obeys the orders. Will you be able to improve your relationship, and your own skills, in the way of a potential chance to the right to inheritance?