Eren looked at the four books placed before him.

He had a lot of questions. If these four books represented this world, that meant there were four Main Characters in this world.

There were four beings who were blessed by Heaven, destined to be the greatest in their Generation.

That was the least of his problems though. The bigger problem was what his presence signified.

If he had entered the world of one of these books, didn't that mean there were people who entered the world of other books?

"How many people from earth are here in total?" Eren asked the shadowy figure before him.

"Who knows..."

Eren couldn't see the face of the person before him, but he felt that the person was smiling.

"All I can say is that you are the only person from earth in the Eastern Continent."

"I see..." Eren rubbed his chin, lost in thought. "You said before that there are more people from earth here. And you also confirmed that I'm the only person from earth in the Eastern Continent."

"That somewhat confirms my assumption." He was certain of his theory.

There was at least one person each from earth who had been transmigrated here.

Why was he called here? What did he need to do to survive? These were all secondary questions. More than his curiosity, his survival was important.

The only way for him to escape all this mess was by leaving the chessboard completely. As long as he returned to earth, everything was going to be over.

Hence, he asked the most important question in his eyes.

"How can we go back to earth?" he further asked.

The godlike being didn't answer.

"It seems like you don't want to answer the question. But it doesn't matter. I have ways to make you answer," Eren stated.

"Oh?" the godlike being asked, slightly amused. "And how will you do that?"

Eren opened the System Space and brought out an item from his storage.

"With a neat reward." Eren revealed a talisman that he had received from the system as a Reward.

"A Question Voucher?"

Eren couldn't see the face of the other person so he didn't know what his thoughts were right now. But he felt that the man was surprised.

"What makes you think that it will work on me?"

"We won't know until we try, will we?"

"You... There are some answers that do you more damage than they do you well. Are you sure you want to use that? Be careful what you wish for."

"It doesn't matter. Since I can die at any moment, I would rather die trying, than to die without answers."

Eren used the Question Voucher that could only be used once. It could only be used for one question.

When he received this reward, he thought it was useless. Even if he asked someone a question using the voucher, the other person was going to remember what happened.

That's why he couldn't use this reward on someone powerful within the sect, worried that he might expose himself.

Fortunately, he didn't have to worry about that with the person in front of him. That person already knew a lot about him.

"I would seriously advise you to not do that. It's all for your good," the person in front of Eren warned him. "You will regret the answer."

"I'm willing to accept that regret then." Eren used the Question Voucher on the godlike being.

From his reaction, he was certain that the rewards of the system even affected that person.

It made him certain that the system wasn't created by him. Eren had many questions that he wanted to ask.

He wanted to ask who created this system? Or how he could go back? He also wanted to ask why people from earth were brought here? Why was this world depicted in a story on a random novel site on earth?

There were so many mysteries that he wanted to uncover. Unfortunately, he could only ask one question. He couldn't afford to waste any questions.

As soon as the Question Voucher activated, the talisman simply disappeared into nothingness.

Eren knew that the question he was about to ask was the most important. He couldn't waste the question. And the answer that he wanted the most right now was simple.

"How do I return to earth again?"

"Since you want to know the answer, I shall tell you." The mysterious person didn't resist this time.

It was as if he was being forced by an unknown force in this world. Even if he didn't want to say anything, he had no choice.

"There are two ways for you to return," he added.

"And they are?" Eren asked.

"The first method is simple. You can kill all the main characters in this world, along with every person from earth who came here."

Eren's expressions turned dark as he heard the response.

He didn't care about the main characters of this world, but he also had to kill the people who had been forced like him to come to this world?

"Since that's the way to return, I assume it's the same for them?" he asked after thinking for some time.

"As I said, you're quite clever. You are correct. If they want to return, they also have to kill the others from earth who came here, including you."

His words made Eren realize that he was in a race against time with the others. With every passing second, the other people from earth could be getting stronger.

And if they also found a way to get this answer, it was only a matter of time before they came for his life.

Essentially, he wasn't simply fighting against the Main Characters of the four continents, but he was also fighting against the people who had transmigrated here, just like him.

It was a game of life and death.

"You said there were two ways?" Eren asked. "What's the other way to return?"

Since his life was on the line, Eren knew he couldn't waste his time in this world. If the second way was faster, then he had to return to earth before anyone came for his life.

"The second way?" The mysterious being started laughing. "Unfortunately, that's even harder to complete than the first method."

"The second method for you to return to earth is simply to become a being so powerful that you can slice through space and open a passage back to earth," he added.

"But if you were that strong, that would mean that not a single existence in this world would have been able to harm you, including other Transmigrators from earth."