Science students at Hogwarts

Introduction: Why did the 28 sacred clans split internally?Who is behind the magic school's involution?What is hidden behind the four colleges seeking cooperation with each other?Behind all this is conspiracy or innovation?In this regard, Elrios said: Times have changed, don't worry about your Muggles all the time, our journey is the sea of ​​stars.Xiaobai author, please lighten up!