Hogwarts is in trouble again, and the scar on Harry's forehead is no longer a simple mark, but the key to Slytherin's bloodline. There is a fragment of the crown hidden in Ron's body, and Hermione deciphers the thousand-year blood curse. In this dangerous magical world, they work side by side with the heirs of the four major colleges to explore the forgotten history and face the threat of shadow tumors. From this moment on, the gears of fate begin to turn.
