The "9와 3/4번 플랫폼" (Platform 9¾) is a fictional train platform from the Harry Potter series created by J.K. Rowling. It is located at King's Cross Station in London and serves as the departure point for the Hogwarts Express, the train that takes students to Hogwarts School of Witchcraft and Wizardry. To access Platform 9¾, witches and wizards must run directly at the barrier between platforms 9 and 10. This magical platform is hidden from the non-magical world, making it a unique and enchanting part of the wizarding world.