Demon summoning is not "summoning" - this problem, Maka has known for a long time. The so-called "devil" is actually a nickname created by a powerful wizard who specialized in soul rules in ancient times, that's all.

Yes, that was "a long time ago"... Even before the end of the ancient Greek era when the goddess of death Kern and the despicable halbo were born.

"I may be the first wizard to study those evil props, but... I just make an in-depth study through their essence. Since you have also studied them, you must know what the source of evil is - the study of soul rules does not have to start from those things."

"... and obviously, the elder who created demon summoning was the first to set foot on this road."

A quiet, soft... And slightly cold female voice is echoing in the hall of Hogwarts, telling these words in an ancient language without any emotion.

To tell the truth, although most people don't understand these words, the voice alone will even make people feel particularly charming. Just listening, it seems to be able to depict the outline of a slim, beautiful and graceful young woman in my mind.

However, it is this voice that can't help but fascinate and even sink into it, but it has a kind of forest cold that refuses people thousands of miles away. Hearing too much often makes people involuntarily fight a cold war.

Warm and cold, two opposite temperaments, seem to be integrated at this moment, making people seem to be unaware of the contradiction between the two.

The sense of disobedience born from this strange harmony is really impressive.

But before long, another voice suddenly came out of the auditorium. The tone seemed a little tired, but it was also neither humble nor arrogant, mellow and peaceful.

"The source of evil... Well, in fact, this problem has bothered me for a long time, and I didn't understand it until recently. Ms. Kern, I'm not as talented as you - I'm just an ordinary person who is a little luckier than ordinary people. It's just... If I'm not mistaken, 'evil' is only half of the rules of the soul? Since there is‘ 'devil ', then there should be -- "

"No."

The young man was interrupted by a female voice before he finished speaking.

"I have looked for it, spent a lot of time, and almost couldn't come back. Behind the door, all I see is a flawless pure energy and, like this... Endless' sin '."

When it comes to "like this", a lot of indescribable "black light" is suddenly released from the windows of the auditorium, which is as deep as a crack in the space. In that "gap", the silent wailing and wailing made people's soul tremble involuntarily.

"Evil can be embodied, but its corresponding energy can't. So the former can be used by our wizards, while the latter... Can't even touch. In the final analysis, it's impossible to completely master the rules of the soul."

"Therefore, if we can't control the soul, we can't become the master of death - the three-level rule is just an elusive existence for us."

Fortunately, those dark lights were only fleeting and did not stay for too long. Before the voice fell, the endless black light suddenly disappeared, and everything returned to its original shape.

"Call -"

I only heard the man's long breath. It can be seen that the situation just now has brought him great pressure.

And just then, I heard the female voice suddenly turn to say:

"Well... When I came back, I seemed to see another person... Do you know that person? It was an old man wearing a silver robe, with a pair of transparent half moon quartz tablets on the bridge of his nose and white beard and white hair."

"Hoo... Hoo..." the male voice was still panting gently. When she asked, he immediately said, "the old man with white beard and white hair? The old man's words, white hair is not strange? I don't know."

"That's all right." the female voice said slightly, "well, I've said enough, and you? McLean... Are you going to give me seven evil materialized props, or do you want me to get them myself?"

After this, the Hogwarts auditorium fell into silence again. Both sides seemed to be very patient, and no one was in a hurry for this moment.

During this period, Delphi's narrative came to an end in the hiding place in Weymouth camp.

……

"... in the pure white space surrounded by fog, the origin of all the 'spirit' in the world is condensed. At the end of that space, there stands a huge 'door'."

"Sorry, I can't speak more clearly, because I only know some fur myself. I just want to say that some energy on the other side of that 'door' is the essence of all 'demons' coming to this land now - sin."

At this point, Delphi finally paused a little, leaving room for everyone present to digest these complex information.

A moment later, she finally said:

"Evil can be roughly divided into seven branches: arrogance, jealousy, anger, laziness, greed, overeating and lust. Seven magic props that existed in ancient times correspond to them one by one. Similarly, there should be a total of seven so-called 'demons' coming at present."

"Miss Granger, according to what you described before, what you met... Should be 'overeating'."

It's not easy to explain these things clearly. Delphi racked his brains to describe them briefly. Even there are many confusion and mistakes.

After all, the "memories" in her head have long been forgotten by herself.

When she finished, Harry couldn't help saying:

"Well... My Gryffindor sword should be 'anger'? In addition to this? What ancient magic props do the other six branches correspond to?"

"I'm sorry, Mr. Potter, I can't tell you exactly. Because... I don't know a few props, and I don't even know whether they have been found."

Almost all the people who know the complete answer to Harry's question have focused on Hogwarts, because this may be one of the most critical information of the whole event.

This is the key to sin.