The Hero and his allies (including the Winter King) continued to think of ways to counteract the threat of the Church and the Central Nations. During all this the young merchant schemed a plot to make himself rich. In the process, this created an economic crisis in the the Central Nations and other countries. The only healthy region was the Southern Nations (where the Demon Queen resides) and the Winter Country. This led to tensions that culminated in the Church and Central Nations declaring war on the Southern Nations.
Episode 10 of Maoyu was interesting but kind of complicated. The economic lesson given by the young merchant was illuminating, but it seemed to be disconnected from the greater world in this anime. A more interesting development was a secret meeting between a young and charming demon dragon princess and the young merchant. They might be planning something that could thwart the peace plans of the Demon Queen, The Hero and the Knight. This episode gets a 8 out of 10.