Greetings, Mister Principal

Reiner learned in the books that the process of casting spells in this world was very detailed.

From the theory of modern magic, there were three steps to release magic.

The first step was to construct a model. Each spell had a unique model. The model was composed of nodes and magical flow channels. The actualized spell model was the foundation of the magic circle. This step was also to determine the type of spell. Once the model was constructed, then it could not be changed unless the casting process was canceled.

The second step was to mobilize magic energy. In this step, one needed to use their own magic energy to light up the nodes in the spell model, and guide the magic energy from the outside to flow into the spell model. The biggest difference between modern magic and ancient magic was in this step. In ancient magic, the magic energy required by the spell was completely supplied by the caster, so the requirement of magic reserve and control were extremely high, but since Hermann Braggs studied the magic model and adopted the external drainage method to construct magic, people only needed to light up the nodes to release magic.

The third step was to cast magic in the traditional sense. The magic power was formed by the magic model, and finally interfered with reality and formed various phenomena. In this step, the caster did not need to do much, and only needed to maintain the supply of magic energy to make the magic work normally.

In ancient magic, what the mages needed to do was to temporarily construct the magic that they wanted to cast in their brains. What they constructed in their minds was also not necessarily a magic model, but a more specific image, such as flames or ice. Therefore, to have any achievements in ancient times, a mage needed not only great magic reserves and control, but also a strong imagination and an understanding of everything. It was not an easy thing to do at all.

Therefore, there were many reasons for failure to cast spells. Some people were unable to fully light up the nodes due to insufficient magical energy and control, and more people were unable to construct spell models perfectly.

Take the simplest zero-ring spell, Produce Flame, as an example. The general basic model of this spell had six spell nodes. Connecting these nodes were eleven magic channels. It took a lot of attention to capture exactly where these nodes were, but of course, it was fairly easy for a trained mage to do this.

Although such magic could only raise a handful of flames that were very easy to extinguish at the fingertips, it also achieved the purpose of interfering with reality.

The illumination spell was simpler, so Reiner was speechless when he heard that Dana failed to cast the Illumination spell.

In addition, the huge destructive power caused by this failure to cast this spell was definitely not something ordinary people could do.

"I'm sorry, Mr. Principal, I will work hard to make money to pay for the damage. I didn't do it on purpose."

Dana was like a cowardly hamster at this time, for fear that Reiner would swallow her alive. The deeds of the principal had not spread among the students, so in Dana's mind, Reiner was still quite scary.

"No need. It just so happens that Mr. Groot wants to give full play to his design talent. Am I right? Mr. Groot."

Reiner had no intention of holding Dana responsible, besides, he couldn't really let this student make money to pay for this... Wait, how did the student make money?

Before Reiner could think of some indescribable career for female students on earth, he suddenly remembered that this Dana Christine was a work-study student, and was responsible for cleaning and other chores.

"Hehe, although I don't know if it can be restored, since Mr. Ian Gray gave me this opportunity, I will try it."

Groot smiled, seeing that Reiner didn't want to blame the student.

"Well, Miss Dana, I have had a few experiments recently and may need your help. How about you come to Classroom 301 on the third floor of the teaching tower at 3 o'clock tomorrow afternoon?"

"Uh, can I refuse?"

Dana said immediately, making Reiner a little embarrassed.

"Can you tell me the reason?"

"Because if a male principal asks a female student to come to the classroom for individual tutoring or something, he might take the opportunity to do something indescribable..."

"Wait a minute, where did you learn all of these things?"

Reiner shook his head. What exactly had this world's cultural industry developed into? Why did all girls possess knowledge beyond common sense in this area?

"When cleaning, I can occasionally pick up a few novels."

That was probably Claire's treasure. Thinking of this, Reiner said.

"Professor Claire will be with you too, so you don't need to worry."

"What if Professor Claire has already fallen, and she is instructed by you to try to control me?"

"This kind of plot does not exist!"

Reiner was lost for words. He felt that he needed to find out what those girl novels were about. No matter how he felt, there seemed to be something strange about those novels.

"Forget it, it's up to you if you want to come or not. I've been studying new magic recently, I wanted to invite you because of your failure to cast the spell. But if you want to refuse, I won't force it."

In fact, Reiner was actually prepared to take the spell test and become a first-ring mage. For this reason, his recent work focused on the construction of spell models, in addition to the repair of the school.

He could tell at a glance that the reason why Dana failed to cast a spell was most likely due to the failure to construct a spell model. Judging from the incredible damage caused after that failure, she was definitely not a person with insufficient magic energy.

Therefore, Reiner needed to verify his theory. Since he happened to meet Dana, he decided to invite her. Of course, if the other party did not agree, he could verify it himself.

"Hmmm......"

Dana hesitated. On the one hand, Reiner's previous impression made her a little worried; on the other hand, the temptation to improve her spellcasting was too great, so she was unable to make a decision for a while.

"You can go back to think about it. I will wait in that classroom tomorrow."

Upon seeing this, Reiner waved his hand to let Dana leave.

"Mr. Ian Gray's method of education is very unique. If my teacher was the same, I would definitely be able to continue to advance on the academic road."

Groot praised.

"Thank you for your compliment, Mr. Groot, I would like to ask how long it will take to repair this tower according to the current progress?"

"According to the damage, the construction period will be extended by at most three days, which means it can be completed in ten days."

Groot replied after thinking about it.

"This is great."

Reiner thought it would be longer, but it seemed that the current damage was not a big problem. With Cola's income, he now had a considerable amount of money in his hand, so the money required for preparing the campus was not a problem.

"After this tower, I think I still need Mr. Groot's help to repair other buildings."

"I am happy to help."