When Maca looked back, he saw a ...... A horrific sight he couldn't comprehend.

The first thing that catches your eye is a large number of regular runes that are constantly rotating around a certain "thing". The runes looked very bleak, as if they were going to disappear at any moment.

And in the middle of the floating and swirling runes, a vague shadow hung out of thin air a few inches above the ground.

As for those runes...... He didn't know how to describe it, it was like...... Space is constantly distorting?

"Are you...... What the? ”

He found that he couldn't even call it the right words. All he knew was that it was a creature - he did hear some kind of heavy wheezing sound.

He just clutched the wand in his hand, but the slender wand didn't give him any sense of security.

"Ahem...... Poof......"

A puff of blood mist passed through the dense regular runes without hindrance, but completely disappeared in the distorted space around it.

"It's not decent...... Ahem...... "It was an incomparably old voice, hoarse and indistinct, but with an inexplicable sense of familiarity.

"Time is running out, listen up—"

"Whew-"

Maca, who can clearly feel the magic power, uses its rule runes to get rid of the stagnation of the past. With a flick of his wand, the magic thread extending from the tip of the wand was drawn accurately and quickly, and an ice-blue pillar of light burst out in an instant, striking straight towards the other party.

But in the next second, the rule rune inexplicably fell apart, and the chilling pillar of light suddenly disappeared completely into the air.

"W-"

"Ahem...... Don't waste time......" The other man's voice sounded unusually weak, but even so, he could easily break Maca's killing moves.

Why is that? The truth of this, Maca couldn't figure out at all.

“…… All you have to do now is just listen to it clearly," the other party's voice was ordinary, like an ordinary old Muggle man, but Maca inexplicably gave birth to a deep soul-deep disgust, "Yes, first of all...... I've got to show you who I am......"

As the other party's voice fell slightly, the regular runes around him suddenly spun faster. Maca noticed that many of the runes had been transferred to the inner circle.

Immediately after, the moving runes suddenly shrank, as if they were entangled in something.

"Just open the first few pages and take a look...... cough cough cough ...... There will be time for you to read the ...... carefully"

Just as the other party spoke, the thing wrapped in regular runes suddenly sped forward. With a strange twist of space, the thing flew between him and the man, as if it had broken some kind of restraint with difficulty.

It was moving towards Maca, but Maca could clearly see that the tangled rune chains were rapidly crumbling. Then, an extraordinarily heavy magic book fell in front of Maca, as if it had lost its strength.

"This ...... It's ......"

"That's right, you...... Ahem...... Do you understand? ”

Maca picked up the book without hesitation, and without even looking at the words on the cover, she resolutely turned the first page.

"That's right...... That's right......" His eyes widened as he looked at the familiar handwriting on it, "you...... Is it possible? ”

He took out an identical heavy book from his waist, and his face was full of intricacies.

"Ahem...... Don't look at it......" The other party didn't pay attention to Maca's reaction, but urged, "Although I should let you know, it is all written...... Ahem...... But I think there are some things that have to be said in person. ”

“…… What's the matter? Maca frowned, her eyes full of falterness.

"Give up that stupid and ridiculous plan! Remember, give up! The old voice was firm, still weak, but it exuded an unmistakable momentum, "Ahem...... That plan will only cost you everything...... Ahem...... Everything, everything! ”

"Everything?" Maca looked at the other party's blurred figure and suddenly calmed down, "Really? ”

There was a hint of noncommittality in his tone, and it was clear that he had developed some doubts because of the other party's words.

Unexpectedly, the other party chuckled.

"Ahem...... Hmph, do you think you've given up? The other party smiled wryly and said, "Think about what Luna said today, you can tell me again...... Ahem...... Are you still going to give up? ”

"What?" Maca's heart suddenly burst, and cold sweat suddenly oozed from her forehead.

This is because, as soon as he spoke, he already remembered Luna's words.

"Mom used to say...... What we throw away comes back on its own, but usually not in the way we expect. ”

An old man and a young man, two people read this sentence softly at the same time. For a moment, two very different voices overlapped, but there was a chilling sense of synchronicity.

"You're not going to give up...... Ahem...... Isn't it? The other party's voice revealed an unspeakable self-deprecation, "...... And that's the phrase...... Ahem...... Tomorrow you're going to listen to it again, and you're going to ...... cough cough cough ...... Then ......"

The other party's coughing suddenly became violent, and listening to the sound made it feel like he was about to cough out his lungs. After a loud gasp, the other man continued.

“…… Then, it will take your whole life ...... No, it's everyone's life, it's completely ...... Ahem...... Total Destruction ......"

"Of course, we don't care about people who have nothing to do with it...... But......" he abruptly accentuated his tone, "but...... What about her? ”

Although the other party's figure is still blurred, Maca just knows that the other party's eyes must have fallen on Luna at this moment.

“…… Hum...... Do you know what a four-dimensional horizon is? The other party suddenly sneered, and threw out a word that felt both familiar and unfamiliar to Maca.

"What?" Maca felt that word had been said enough tonight.

"I can't see her clearly now...... Damn...... In my eyes, you are like long and disgusting worms with all kinds of colors! ”

"Yes, that's right...... Ahem...... From outside the door to here, and then to other places......" the other party said, pausing suddenly, "Ahem...... Hum...... I want to see her again...... It's just a good ......."

"Wait!"

Maca immediately sensed that something was wrong, but by the time he could speak, it was too late.

In the next moment, the rule runes around the other party's body completely dimmed. And then they crumbled, one by one, one by one......

In the blink of an eye, the originally amazing three-dimensional rule rune array turned into nothingness; And the figure inside was finally exposed to the air.

How so? It's like a ...... A rag bag that kept oozing blood......

The figure had only existed in front of Maca's eyes for less than a second, but Maca had imprinted him deeply in his mind without missing anything.

Including the delicate robe on his body that had been soaked in blood, although its original color could no longer be seen clearly, the layers of regular runes on it could still be clearly distinguished;

Including the long-pole staff of his own height, the dark green staff was also carved with many runes, and the top was even inlaid with some unknown stone.

And, of course, the wrinkled old face, and the look in his eyes that was so familiar to Maca that he had just experienced, from the deepest weakness and fear in his heart.

Is he afraid of death?

No, he was afraid that he would just not be able to see Luna's sleeping face again, right?

Maca looked at the space by the window, everything just now did not leave a trace, as if it was a trance dream, it was so unreal.

But in his hands, two identical books were reminding him with their weight that it was not a cruel nightmare.

Maca lowered her head, and on the cover of the book above it was magically branded with four large silver-gray letters......

“…… The Book of Sin. ”

Instead of turning it over immediately, he shifted his gaze to Luna's face. He also seemed to be afraid—afraid that he would be like the one just now, and at some point he would never have the opportunity to watch her quietly......

Maybe it's because both sides consciously lowered the volume just now, right? Luna was still asleep, and when Maca looked over at her, she happened to see her smile sweetly.

“…… Luna. ”

Maca called softly, but she was afraid that she would really wake her up, and every syllable was so careful.

It took him a long time to come to his senses, then he leaned back on her hospital bed and quietly opened the magic book called the "Book of Sin".

When she opened it for the first time, Maca noticed something unusual about the book. Now, when he reopened it, he immediately realized that the book was indeed "incomplete".

As the name suggests, in the middle of the book, there are many pages that have been neatly torn off one piece. Maca didn't know what those pages had ever ...... In other words, what will be written in the future is undoubtedly not visible to him now.

He exhaled softly and began to look at the first page.

The book was identical to the other one he had at hand, and even the first few pages were exactly the same. On those familiar pages, there are many records of research rule runes, and they have only recently been written.

Before that, Maca had already written three volumes of notes on the study of regular runes, and this should be the fourth, and it was just the beginning.

Further down the page, there is the progress that he has not studied......

"It's really the same as the assumption I haven't written down yet, or rather, it's just the follow-up that 'I'...... wrote."

However, just as he was fascinated, his notes on rune research came to an abrupt halt......