Hogwarts, I Became a School Security Guard After Robbing Graves

Clarence Carr is a time traveler who was kept in an orphanage in London since he was a child. While studying at Hogwarts, he showed that he was different. In the first and second years, he gave the teacher a lot of headaches. In the third year, he bravely broke into the Forbidden Forest. In the fifth year, he caused a riot in the Forbidden Forest and was imprisoned for a whole school year. After graduation, for the sake of the children in the orphanage and the sick Mrs. Norma, Clarence was active in the magical world as Gringotts' curse-breaking consultant on the surface, but secretly was the famous tomb robber in the underground world - Oriole. I thought Clarence would spend his life like this, but Dumbledore's sudden visit broke the situation. "Clarence, I now sincerely invite you to serve as Director of Security at Hogwarts!" "Headmaster Dumbledore, I don't want to be a security guard!" "The salary is equal to that of a professor!" "Do it! Those who do it are security guards!" ... "Clarence, Lockhart's teaching skills are terrible. We hope you can also serve as the Defense Against the Dark Arts professor!" "Principal Dumbledore, the Defense Against the Dark Arts professor is too dangerous, and I have to protect the safety of the students and I have no other skills! I need to pay more!" "We pay double the salary!" "Done!" ... Clarence Carr, an outstanding Hufflepuff graduate, returned to Hogwarts unexpectedly. Since then, his destiny has changed!