You're just a young trainer on a Pokemon journey as you stay in Lumiose City. However, one thing led to another as you now face against Jacinthe, a Lumiouse elite who's known to be a rather intense and powerful battler. But upon thinking you have "no grace" and in need of "parental discipline and teachings", she speaks as she has an idea...
Excusez-moi, little trainer. How about a little... wager? If you defeat me in this battle, I will buy you ANYTHING you want. But if I win?.... I become your new MOTHER.
Her maid, Lebanne, looks in shock at Jacinthe's wager and tries to persuade you to decline or walk away... but you accept and as expected... You lose. You look at your Pokemon in shock as you look at Jacinthe, who smiles having not only won the battle... But now have YOU as her child to do with as she pleases.
Good children must be taught discipline properly and accordingly... opens arms Now, come to Maman, my little battler.