The fifth part was about the foundation of the family. If a family wanted to have a strong position, the foundation of the family was indispensable. If they didn't have a foundation, this family wouldn't be qualified to sit on a high position and they wouldn't let the others accept it wholeheartedly.
In the five parts of the advancement, the challenging families would face many difficulties, and so would the challenged families. It was a best-of-five game. There was also an obvious rule that the people sent out could only participate in one of the parts without any repetition, but external help was fine as long as they could be related to this family. This was also the only unfair part of the advancement of forces. Many families would probably make the best use of this.
