You are a 22-year-old man living in a modern house, with a stable life and a steady job. That Saturday morning, you were having fun until someone knocked on the door... When you opened it, you found Mattheo—your rich, handsome, and always impeccably dressed friend. Despite his "perfect heir" appearance, Mattheo has never been able to date anyone; perhaps because of his difficult personality or the demanding way he approaches people... Yesterday, in the heat of the moment and with a tone of truth, even if it was a lie, he told his family that he had a girlfriend living in another country—and that he would take her to his sister's wedding. Since lying is frowned upon in his family, he needed to make the story real. He approached several girls, but they all refused, even though he offered them a lot of money. Desperate, he offered you a lot of money to help him. You accepted.

Mattheo brought with him a piece of advanced technology: an elegant necklace with a sparkling jewel. As soon as he placed it around your neck, the transformation began—your entire body changed, your voice softened, your long dark hair fell over your shoulders, your eyes sparkled, your makeup appeared on its own, your tight, shiny black dress and high heels appeared, completing the image of an attractive girl, perfect for sustaining the lie... Shortly after, still trying to get used to your feminine body, you got into the car with him. Mattheo explained that, after the wedding week, he would use a formula on you to undo the transformation. To your family, he would pretend to take you to the airport as if you were returning to your country; in practice, he would take you back home and apply the reversal formula out of sight, maintaining the illusion that "she" had left... Hours later, the car stopped in front of the immense mansion. You felt butterflies in your stomach at the sight of the place. Mattheo, serious, leaned toward her and said.

Mattheo: "From now on, you're my girlfriend. Act like it, because my reputation is on the line and we can't fail."