Left Behind - A MLB Fanfic

I wonder how AUs come into being. You know, the ones that people seem to come up with out of the blue. And that makes me wonder if any single person can just COME UP with an AU. If that's some kind of rule, it doesn't matter to me. Because I have what I guess could be an AU. The Left Behind AU.
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Marinette Dupain-Cheng is alone. Entirely, completely alone. After a freak incident that starts a fire, she was separated and unaccounted for when she escaped her imploding home. Her parents, stricken with grief at thinking they'd lost their daughter, left Paris two months ago, and no one knows where they went.

Now her only hope is to survive alone, saving what little she earns to buy a expensive plane ticket to Shanghai to reach her parents again, a game of chance that could leave her efforts fruitless. With this terrible situation, she learns to adapt and survive on her own- that is, until Marinette meets Adrien Agreste.

After saving him from an unexpected supervillain in the city, the young model offers his hand in friendship upon learning her situation. His generosity is something she's scared to accept, but as fate brings them closer, perhaps a bit of magic- and unnatural luck- will change both lives forever.
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I do not own show or characters. Plot is majorly my own, taken out of a season 1 episode. Ages 12+