That One Letter. Larissa Weems x Reader

Wanting to escape her past and start a new life Y/n moves to a city she knows nothing about. She wants to experience independence and a sense of responsibility, and it all begins when a mysterious letter appears in her bag addressed to a woman named Larissa Weems. Where did she get it? How did she get it? But most importantly, how will she give it back to the rightful owner? Who is Larissa Weems and how did her letter manage to find its way into the girl's bag? This letter might just be the new beginning that Y/n has always dreamt of.