Mathilde is a 13-year-old girl from France who lives with her parents and younger brother in a small village. She describes her family, including her father who is a farmer and her mother who enjoys reading. Mathilde talks about enjoying time with friends, riding horses, and swimming. She provides details about her bedroom, which is sometimes untidy, upsetting her mother. She concludes by introducing her two best friends, Mylène and Justine, providing some key biographical details about each.