After Shattering the Void, he actually went to the Time Management Bureau to retire! Please don't be boring like that, okay?
Then, the only option is to travel through time!
Hermione, let you know what genius is;
The Philosopher's Stone, that is destined to be mine;
Harry Potter, feel free to be your supporting role!
I am Lin Tian, what do I look like in the magical world?