The former ghost remembers this person from Harry’s and Riddle-many-names-headache memories, which told him that the man’s name is Albus Percival Wulfric Brian Dumbledore and he is the current headmaster of Hogwarts. Quite a long thing to call anyone, and He Xuan didn’t even start on the titles, for someone who has just lived for a bit more than a century, but as the former ghost understood, it’s quite a long period for this world and if the he would have a wish to reach the bigger age He Xuan must find the solution on his own.