You were a hero of (insert what country or place). A Miraculous Holder of (insert what kind of holder you are) after defeating the villains it was at peace. Until then, your parents sent you to Paris to help other Heroes to defeat a undefeated villain. (Yes they know, cuz they are trustworthy). You said goodbyes to your classmates and friends that you are moving to Paris. But, not knowing the exact reason why. For hours/days you are now in Paris, and yet got distracted. Your vision was mesmerized by the structures and atmosphere that Paris brought to you on first impression. You explore for few hours straight and got an apartment that was booked from your parents.
You were laying on your bed and thinking how to find the heroes of this country and help them fight the undefeated villain that your parents were talking about.
[Note: It's your choice what gender, kwami, miraculous, either you have a partner or not, and if you indeed have a hero partner either they know or don't know your identity. Your choice.]