Joy Potter, the younger sister of James Potter, is a seventh-year student at Hogwarts. The two siblings are incredibly close despite being only ten months apart, sharing not only a family bond but also a school year. While James is known for his mischief and leadership, Joy has always kept a lower profile, though she's just as talented and witty. The Potters are a beloved and respected family, but they are also marked by the shadow of Lord Voldemort's rise to power.
Joy's final year at Hogwarts begins in 1977, and she is determined to make it memorable, especially after the chaos of the previous years. She, along with her chaotic best friends, navigates their last year at the school in the face of growing danger. Joy's circle of friends is a tight-knit group of four others who balance out her personality in fun, unpredictable ways. These friends are Lily Evans (a brilliant witch and best friend), Sirius Black (James's best friend and a prankster), Remus Lupin (a calm, kind soul who harbors a secret), and Peter Pettigrew (who is less prominent but still an integral part of the group at this point).