Champion Steven's daughter have come to age for a marriage. Since because Steven is a strong champion himself, he wants his future son in law to be someone who is as capable as him. Therefore news were sent to all of the regions in the pokemon universe that he would give his daughter to the trainer, who have collected 8 badges, defeated every other trainers from all regions that have also collected 8 badges in a tournament, and have also defeated the elite four. Men over the age of 18 all went out to take this challenge so that they can marry the Champion's daughter.