Harry Potter: the Devil's Son

(Dudu, a novice author is on the road. There are many private settings in the novel, and there may be some poisonous spots. Please be gentle and thank you for your support. This book is only to make up for the author's own difficulties, so if you can't accept it, you don't have to read it.) The man travels through a hidden family that is not mentioned in the Harry Potter world, but this Harry Potter world seems to be different from what he remembers. Destiny has been changed, the devil and the god of death cannot coexist in the world. On the eve of the devil's downfall, on that special day of devil's birth, the devil's son came to the world. Carrying mysterious power and a heavy mission, his fate is closely linked to this troubled world. In the same year when the Demon King collapsed in the darkness, the Son of the Demon will start a shocking battle with the God of Death. Will light drive away darkness, or will darkness envelope us again? Everything is unknown, and only by waiting for the day of the decisive battle can the final decision of fate be revealed. How will the story happen? Note: (I emphasize again that this is a new author, the plot may be a little bit toxic, so if you don't like it, don't comment, it will be updated from time to time. It's more towards the movies)