"Professor Dumbledore, you're here, I've been waiting in your office for a long time. This is my rewritten textbook, can you show me what is missing? ”

Just as Lucius was about to fight this duel, he saw an extra crack not far in front of him, and then a pair of white hands came to the gap, and he saw a young man with a more oriental appearance walking out of it.

After taking the manuscript from Yang Su's hand, Dumbledore looked at the surprised school trustees in front of him and said with a smile, "This is, Mr. Robin Hulos." A magician immersed in research. He discovered dimensional magic and wanted to teach it to my students. Lucius, have you decided? ”

Seeing Yang Su's debut, Lucius Malfoy was immediately stunned. The other party actually tore through the spatial rift to move. Not to mention that this guy didn't have a staff at this time. Duel with such a pervert unless you are bent on death.

But Lucius at this time still pretended to be calm, and after glancing at Yang Su in front of him, he said calmly: "Although I don't think this gentleman is particularly suitable for the profession of teacher, I believe in your choice, Dumbledore." ”

"Hehe~" Listening to Lucius's hypocritical words, Dumbledore snorted coldly and said, "Since that's the case, then this meeting will be over." ”

"Wait a minute, Dumbledore. Please let me say hi to the new professor, my child Draco is about to start school. Hearing that Dumbledore was going to leave with Yang Su, Lucius made an excuse and spoke.

"Ahem, Mr. Lucius, it's a pleasure to meet you. I have to tell you, though, that my classes are elective. I didn't start until I was in the third grade. ”

After Yang Su finished speaking, he followed Dumbledore out of the conference room and entered Dumbledore's room together.

"This time there were a lot fewer mistakes. However, there are still some things you need to change. You're a beginner dimension, so I don't think you need to be in a hurry to call them for a battle move. Instead, teach some simple and easy-to-understand little magic. After all, the beginner course is a 3rd year wizard. ”

Pointing to a few simple dimensional attack skills in the book, Dumbledore said, "I think the little wizards who can master the magic of transcendent perception in the first semester of dimensional science are very good existences. ”

"I can understand this, dimensional magic is generally difficult." After expressing his understanding of Dumbledore's words, Yang Su continued, "But the dimensional stone obtained through transcendent perception is not necessary for the use of magic by dimensional mages. Its function is mainly to enhance the magic power of words. ”

"I don't know much about dimensional magic, but I want you to teach less aggressive magic in your lower grades. Dimensional magic is difficult to comprehend, but what if someone happens to learn it and start a fight? ”

"Understood, Professor Dumbledore."

……

After several deletions, deletions, and revisions, Yang Su finally completed and Dumbledore published this elementary dimension.

The appearance of new magic, the Ministry of Magic does not seem to make any moves. However, I heard that some people have already gone to buy enough to do research. Yang Su said that he was very happy about this, probably because of the image of Robin Huleus, he is now having a good time every day.

The summer at Hogwarts is slowly coming to an end, and Yang Su has finally finished all the textbooks of dimensional science. Although it is an elective course, Yang Su's arrangement of dimensional studies is the same as that of compulsory courses. In the first year, I learned the knowledge of elementary dimensionality, and the exam was very simple, and I could pass it by condensing a dimensional stone within a certain period of time.

In the second year, you need to be proficient in one dimension of magic. In the third year, Yang Su didn't need to think about the senior exams for the time being, because at Hogwarts, it was good for the senior students not to give up electives for the wizarding exam.

After finishing the preparations for teaching, Yang Su tore open the dimensional gap and temporarily left the school and came to the Forbidden Forest.

Coming to a clearing in the Forbidden Forest, Yang Su spread out the magic in his body, and the mysterious dimensional energy escaped, drawing into a strange magic array.

Yang Su could feel that the physical strength on his body was slowly draining, and summoning Nyali was not consuming magic energy, but his own blood and physical strength. However, this bit of physical strength is just a piece of cake for Yang Su. As long as the seal of the Blood Mage class is broken, the amount of blood consumed by himself to summon Neyali will naturally be replenished.

At this time, Yang Su's face became whiter and paler, but he showed a satisfied smile. He got in touch with the forbidden person in another dimension, Neyali.

"Hmm~ Familiar feeling, Dimension Walker. It's been a long time since I've met it. Do you want to sign a contract with me? ”

Looking at the succubus in the seal in front of him, Yang Su replied firmly: "That's right, I want to sign a contract with you." ”

"Then begin, a contract of the law gathered with your blood. I would like to be called by you to be by your side. As soon as the words fell, Yang Su felt as if his body was about to be hollowed out, and his pale face clearly knew that he was about to become the first blood mage who did not lose too much blood in the battle and died.

At this time, Neyali on the other side had already gathered Yang Su's blood into a magic contract and a magic circle. When Yang Su signed the contract, the seal that sealed Neyali had been broken. This powerful dimensional creature directly opened the dimensional rift and came to Yang Su's side.

"Hello, Little Dimension Walker. How can I help? Looking at Yang Sunai, who looked very weak in front of her, she approached and asked.

Looking at Neyali Yang Su, who had an outstanding appearance in front of him, he waved his hand and said, "Not for the time being, this time it is mainly to sign a summoning contract with you." Hope you show up when I need it. By the way, where would you be if I hadn't summoned you? ”

"Playing in various worlds, you should know that it is not difficult for powerful dimensional mages to travel through the world."

"Well, let's go play. I'll call you if you need to. As he spoke, Yang Su watched Neyali disappear in front of his eyes, and used his magic to teleport to his dormitory.

"It's really tiring, I didn't expect to summon Neyali to consume so much stamina. If only the Blood Mage profession were still open, this bit of blood was nothing. ”

……

Early the next morning, Yang Su got up and went to Diagon Alley, dragging his weak body that had not yet recovered, and took the vault key that Dumbledore had given him in Gringotts to withdraw money.

Handing over his key, Yang Su said to the goblin in front of him, "I want to take some money from my vault, Dumbledore helped me deposit it." ”