The Alchemical Revolution at Hogwarts

"Yuri, Yuri, who is Nicoléme?" "Why don't you ask about the magical conch?" Yuri handed the magical conch to the three little lions. "Yuri, we can't defeat the mysterious man. His death curse cannot be defended at all." "Take the cockroach hat. All attacks that miss are meaningless." Yuri took out the hat with two long beards. A time traveler comes to the world of Harry Potter and defeats the mysterious man? It means nothing to the wizarding world. Only a true revolution in alchemical technology can change the world.