A Mysterious Fanfiction: The protagonist, Chen Yuan, a "broker," has been traveling through the Harry Potter world for seven years. He finally receives an offer to become a professor of Muggle Studies at Hogwarts, but upon waking, he finds himself transported to another world—this time, in the body of a woman. At the same time, the "Mysterious Queen" Bernadette awakens within Chen Yuan's body. PS: The male and female leads swap souls every few days. (The author has already completed the novel "A Mysterious Journey Begins with Harry Potter.")

Edward traveled through time again and came to a mysterious world.

From then on, there was a stranger here who could travel between the two worlds regularly.

So, what will he bring to both worlds?

ps1: This book is a traditional fan work and will not completely abandon the original characters to tell the story. The heroine is Miss Justice, and she may join the Queen later on.

ps2: The path of the protagonist of this book is semi-original. He takes the path of [Apprentice] in the early stage and starts to change in the middle stage.

ps3: The protagonist is basically invincible in the same level, but he can't kill high-sequence enemies.