Blood and Ice. Mad Dog

It is believed that anyone can become a ranger. It is enough to simply undergo training at the training center of the corps.

However, in reality, things are not so simple, and numerous hereditary boyars, whose generations have been engaged in exterminating monsters, do not want to see some rootless weaklings beside them, whose ancestors sowed rye and engaged in other agricultural activities...

Will Gordey manage to defend his right to training?

What will happen to his huge debt to the corps?

And why will the aristocrats start calling him Mad Dog?