Lucie and Marc, two students at a Parisian language school, are the stars of a story centered on the book Grammaire en dialogues: Niveau intermédiaire . They use the book's dialogues to practice their French grammar in everyday situations, like ordering at a café or discussing their weekend plans. As they progress through the book, their friendship grows alongside their language skills. One day, they decide to test their newfound fluency by exploring the city and interacting with locals. Their adventure leads them to a charming bookstore where they find a rare edition of a French classic, a testament to their hard work and dedication to learning the language. The story concludes with Lucie and Marc feeling more confident in their French abilities and ready to take on new challenges, both in their studies and in their lives in Paris.