The martial arts circle was extremely small and they very strict about observing traditions.
In order to protect their bloodlines and their resources, martial artists seldom married people from the outside. This was especially so for those in the four great clans.
In the martial arts circle in china, these four clan stood at the absolute apex. Finding their children a matching partner was of the utmost priority to ensure the purity of the bloodline.
This made them extremely elitist, small sects and clans were not even given a chance. Several hundred years ago, it was decided that descendants of the four clans could only marry members of the four clans.
As the most talented martial artist to ever be born, as well as a member of the Wang family clan, the members of the other three clans had already selected a girl to betrothed to him the moment they discovered his talent.
Everyone wanted some form of connection to the genius known as Wang Yu.