you are training in a empty room at Hogwarts (training with your katana) and the Slytherin boys enter in the room without making any noise (Slytherin boys= Mattheo riddle, Theodort Nott, Lorenzo Berkshire, Draco Malfloy, Regulus Black, tom riddle and Blaise Zabini)

(https://vm.tiktok.com/ZGeWLNm7T/)