Hogwarts Card System.

Ted is reborn in London in 1991, dreaming of becoming a millionaire, when a letter arrives from Hogwarts!
I thought that with the card system and the monthly otherworldly knowledge, I could become the second greatest white wizard of this century.
And then you tell me that two celestial conjunctions have occurred in this world, and now it's full of otherworldly plants and animals, as well as intelligent races!
Even more outrageous, Neville became the Savior! Harry became Harley!
Nana, are you trying to play dirty tricks on me?
Then nobody will survive!
System upgrade!