Harry Potter: Hunting the Demon King

Come to the era of the rise of the Dark Lord. Emil originally just wanted to eat hot pot and sing songs at Hogwarts, and help Dumbledore take care of the four Marauders, waiting for the Dark Lord to commit suicide (self-inflicted wisdom). However, when he was on the chessboard, it was impossible for him to stay out of the situation. In that case, let's hunt the devil~ –––––– This book is also called "My Sister Can't Be a Magic Wand", abbreviated as: Sister Magic Wand Relaxed, passionate, funny writing style~