Upon hearing Jiang Chen's firm words, the Demon Lord raised his head slightly. When he saw Jiang Chen's ambiguous smile and the sharpness in his eyes, he realized that this genius in front of him might be even more extraordinary than he had imagined. "Have you already reached that level of combat power?" Although the Demon Lord had already guessed in his heart, he couldn't help but ask. After all, in their recent duel, the Demon Lord could sense that Jiang Chen was only at the peak of the Quasi-Immortal Lord level. For someone like that to dare claim that they could unleash the power of an Immortal Emperor level, no one would believe it, and they might even mock the person as a fool. However, the Demon Lord couldn't laugh at this moment. After all, a peak Quasi-Immortal Lord like Jiang Chen being able to fight him to this extent was already quite exaggerated! Therefore, when Jiang Chen said that he could reach the peak of Immortal Emperor level in terms of combat power, the Demon Lord had no doubts at all! "If you have that kind of combat power, it would be enough. But I think this time, the battle between the Immortals and Demons will also be a fight to the death." A helpless smile appeared on the Demon Lord's face. Jiang Chen was slightly surprised. He didn't expect the Demon Lord to be so knowledgeable about the outside world! Seeing Jiang Chen's slightly surprised expression, the Demon Lord explained slowly.

Originally, when they obtained the key to open the Dao Palace, they were all extremely weak because they had just finished the war with the Heavenly Dao. The Demon Lord's old friend, who was also his old rival, was worried that there might be other demons appearing after it was opened, and they wouldn't be able to control the situation. So they split the key in half and entrusted it to the Demon Lord and the Immortal respectively. Originally, their hope was that everyone would become powerful in the future, and then they would open Pandora's Box together. But they didn't expect it to end up being unilaterally swallowed. "But seeing how things have developed, don't you want to do something?" Facing the Demon Lord, Jiang Chen expressed his doubts. After all, the current development of the Immortal and Demon realms was completely contrary to their original intentions. After the recent battle, Jiang Chen didn't believe that the Demon Lord could only linger here. It was just that the current Demon Abyss didn't want to leave. "We have already changed history by fighting against the Heavenly Dao. If we intervene again, it will cause irreparable consequences for future generations." The Demon Lord smiled faintly and showed a calm expression on his face. Perhaps those who had experienced that incident would be more open-minded about many things in the future. "So, what do you want me to do?" Jiang Chen looked at the Demon Lord, who suddenly burst into laughter. At this moment, Jiang Chen saw four words on the Demon Lord's face: cunning and sly! "Can't you show some respect for us seniors?" The usually cold Demon Lord rarely joked with Jiang Chen, and Jiang Chen responded with a smile without caring. "I think fulfilling what you expect is the greatest respect for you. Otherwise, why do you think I'm here?" The two of them didn't know how long they had been talking, and then the Demon Lord lifted the restrictions around them. When Jiang Chen appeared, the others immediately surrounded him. After a few exchanges, Jiang Chen finally realized that he wasn't the only one who had fought with the seniors back then. The others had also had their own experiences. "So, who did you fight against?" As soon as the Sword Spirit asked this question, everyone's gaze turned towards him. "Lord of Demons."

When Jiang Chen uttered these two words, the smiles on the faces of everyone present disappeared. They had originally thought that the opponents they were sparring with were already very famous characters, and they wanted to show off to Jiang Chen. But they never expected to be proven wrong so quickly. The one Jiang Chen sparred with was a top-tier existence in the pyramid. "Alright, now that the current matter is over, let's go back. The path ahead is not one we can tread," Jiang Chen said, and the others had no words in response. They turned around and walked back in the direction they came from. Does Jiang Chen understand the situation inside? The answer is no. But why can he say such words? He must have received guidance from the Demon Melody. And when these few geniuses returned to the Immortal Domain, they immediately heard some exciting news. The next Immortal-Demon War is about to begin! "So as long as we can obtain the half key from the Demon Realm, we can enter that palace?" Upon hearing the news brought back by Jiang Chen, the first Quasi-Immortal Emperor felt very happy. Because without accurate information, even if they won the war, they wouldn't know how to enter. The previous Immortal-Demon War was the same. Although they obtained the key, they didn't have a map. "So where exactly is that passage? Did the Demon King tell you?" Even though the Demon Lord is a member of the Demon race, he still used the term "大人" (dàrén) when mentioned by the first Quasi-Immortal Emperor. "In fact, it's the place we went to today," Jiang Chen said, and the expressions on the faces of the people around him became somewhat strange. The intelligent people present naturally understood the meaning behind Jiang Chen's words. However, they didn't expect that the Demon Lord would make such a sacrifice for this so-called world. "Alright, everyone, let's not dwell on this here. Let's prepare for the upcoming war," Jiang Chen's tone was calm, but his words were unquestionably resolute. Even when he didn't know the key's purpose before, Jiang Chen had no intention of giving the key to anyone in the Demon race. Now that he knows the key's use, he certainly cannot let it go. "This time, the battles at the Immortal Emperor level will be handled by the nine of us old folks. As for the battles below Immortal Emperor level, it will be your responsibility," the first Quasi-Immortal Emperor said, and although the others were momentarily stunned, they nodded in agreement. This arrangement meant that the highest combat power in the Immortal Realm was being brought out. But upon careful consideration, this arrangement seemed only natural. "No need for further words. Go back and prepare," after confirming some details, Jiang Chen and the others returned to their respective territories. Jiang Chen briefly recounted the recent events to his people. Including the mighty figures like the Eternal Emperor, they also didn't expect this matter to involve such a heavyweight figure as the Demon Lord. "I hope there won't be any mishaps this time," the Eternal Emperor muttered to himself. As time passed, the Immortal-Demon War quickly approached, and Jiang Chen and the others arrived at the ancient battlefield of the Immortal-Demon War.