Hegwarts: I Can Add Unlimited Points

I suddenly traveled to England in 1991. I thought I could become a rich man knowing the future development. But what I didn't expect was that one day, an owl came back to the house with a letter in its mouth about admission to Hogwarts School of Witchcraft and Wizardry. Our male protagonist was confused at that time. He thought it was an ordinary world, but he didn't expect to end up in Hogwarts. Fortunately, you must bring a cheat when traveling through time, and there is a point-adding system. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.