"So this is where we part ways. It's been a pleasure serving with you guys. May the next season bring us even more fortune."
While it wasn't obvious for the people not connected with the mercenaries in any way, there was a dry period for this work just as well as there was one for others. Even if there were some exceptions, in general, warfare would be put on hold during the winter. It was still possible to conduct it, but the cost of keeping one's troops up during the snowy period would often prove to turn the entire military enterprise unworthy of its price.
And the same could be said about the job of mercenaries. Once the first snow would appear in the Kinarian lands, it was only a matter of a week or two before both the empire to the south and the kingdoms to the north would turn into blizzardouos place, where people would find it challenging to live, not to speak about conducting any serious warfare.