The five monarchs refers to the heads of the five strongest planets on the planet.
One family being the Fords, which was previously ruled by Sir Giant, but he stepped down from his position as the monarch.
Allowing his son to rule the family next, but after his son died, his grandson took over the family.
Sir Giant only had one son, but two grandsons and a granddaughter.
One grandson being Darius, who had died not long ago, and the other was Shen Ford, who ruled their family currently.
Shen had two children, a boy and a girl, namely Rich and Tiny.
It was Tiny for whom they had been searching husband candidates through the competitions in all the kingdoms.
Although it got delayed because of the war, very soon, the marriage trials were about to begin.
All five families lived in their own separate realm.
There was another family which could be said to be the strongest of the five, but it had started to decline in recent years.
After the son of the family monarch disappeared.
