I'm a wizard with a proof from Hogwarts

Introduction: Rudy thought he would become a famous detective, after receiving a letter from an owl, he packed his luggage overnight and bought a train ticket to leave Europe, although he was stopped by someone in the end... So far, he has become a first-year student at Hogwarts, and started his magical journey in another world...Note: This book is not a pure HP fan, so please do not come here if you are serious about the original book Bother me.