Sparda’s sword smashed heavily on Mundus’s Wall of Sighs.

A deafening clang that could pierce one’s eardrums came, and sparks erupted on the point where the sword hit the shield. The shield completely blocked Sparda’s sword while shining with grayish-white light. But no matter how hard Sparda gritted his teeth and exerted his strength, his sword could not advance an inch.

Inside the shield, Mundus clicked his tongue in pity at Sparda and mocked. “Sparda… if I were you, I wouldn’t have gotten up just now, lest I have to lie down again.”

“Shut up, Mundus!” Sparda roared at Mundus before turning to Roy. “Aren’t you going to help?”

Roy grinned and did not waste any time. Holding Frostmourne, he burst into the air and stabbed at Mundus’s shield. At this moment, the Red Dragon Emperor’s Gauntlet on his right arm erupted with intense red light. After accumulating power to the limit, Roy’s attack had sixty-four times his strength!

Unlike Sparda’s ineffective attack, Roy’s sword instantly struck a dent in Mundus’s shield!

The light screen of the shield caved in as Roy’s sword sank into it. But after stabbing into it, Roy felt an unparalleled resistance. Roy’s explosive strength seemed to have fallen into a quagmire as it was quickly cushioned bit by bit.

After Frostmourne stabbed in more than half of the blade, it could no longer continue forward.

In the shield, Mundus looked at the tip of Frostmourne, which was close at hand, and cold sweat was about to break out. Roy’s sword attack did not look like much, but unexpectedly, the effect of his attack exceeded Sparda’s by dozens of times. Such immense explosive strength almost pierced through the Wall of Sighs…

Roy was equally extremely surprised. He had wanted to shame Mundus and make his shield that he was proud of fail as soon as it came out, so he used his limit of sixty-four times his strength. But he did not expect this guy’s shield to be so strong that even when he used the sword tip to increase the pressure, he could not pierce through it.

The light on the Wall of Sighs was flashing rapidly. It was obvious that it was under immense pressure, but even so, it was still standing firm.

Roy was a little unwilling to give up, so he maintained his strength to keep the depth of Frostmourne’s stab and tried to increase his strength again to see if he could pierce the shield. Beside him, Sparda was also very angry at Mundus’s turtle shell, so he kept slashing at it with all his might, causing sparks to fly.

Mundus observed carefully for a while and was relieved to find that the shield had totally blocked the two of them. Under the protection of the shield, he calmly condensed an enormous fireball and shot it at Roy.

Then a strange scene appeared. When Mundus attacked, the fireball passed through from the inside of the shield without any resistance and flew outside.

Roy was shocked and could only withdraw his sword to dodge. But Mundus controlled the enormous fireball to turn and continue chasing him.

For Mundus, there was no need to worry about Sparda—he could not break his shield. On the other hand, Demon Osiris posed the greatest threat. Mundus was afraid that Roy would attack again, and the shield might not be able to hold on, so he attacked him first.

The flying speed of the fireball was very fast. Roy dodged left and right and changed directions back and forth, but the fireball kept chasing after him. As a last resort, he could only flash and disappear in the air. But unexpectedly, under Mundus’s control, the fireball jumped and appeared near Roy after the flash.

A flame attack with spatial power?! Roy knew that he could not keep dodging like this, so he simply went up and slashed at the fireball.

Boom! An earth-shaking explosion immediately erupted. The moment Roy struck the fireball, the immense magic power contained within it immediately burst out. After exploding, the entire fireball turned into a huge pillar of fire that soared into the sky and enveloped Roy.

After the flames of the fire pillar dissipated, Roy appeared in the air. At the moment of the explosion, he had enveloped himself in a frost shield. But the heat of the flames was terrifying, and it instantly melted his shield, causing him to become a little disheveled.

“Hahaha, don’t worry. There’s still a lot more!” Mundus laughed maniacally under the shield as he fired several fireballs one after another.

Most of these fireballs flew toward Roy, but a small portion of them flew toward Sparda, forcing him to dodge quickly.

Mundus hid in his turtle shell and controlled his magic to attack the two of them continuously. It seemed like he was planning to use his immense magic power to exhaust them to death.

In the air, Sparda and Roy looked at each other and finished communicating in an instant. They flew toward Mundus on both sides with the fireballs chasing behind them.

“Hmph. Do you want to dodge at the last moment and make my attack hit my shield?” Mundus saw through their intentions at a glance and could not help ridiculing.

As expected, when Roy and Sparda flew closer, as soon as they dodged, Mundus controlled the fireballs to move away quickly, preventing them from hitting the shield.

This guy’s control over fireballs was simply too skillful. For a while, Roy and Sparda did not have any good ideas and could only continue to destroy the fireballs.

Although the flame damage of each fireball did not cause much damage to Roy and Sparda even if they hit them, this situation where they could only be attacked by Mundus but could not attack him still made them frown.

“Hey, Osiris, think of something!” Sparda shouted at Roy from afar.

Roy did not say anything. After the Red Dragon Emperor’s Gauntlet finished charging again, he flashed in front of the shield. But this time, he did not stab with his sword but directly punched.

“Thirty-hit Nail Punch!”

Bang! After a thunderous bang, a slight dent appeared on Mundus’s shield. But before the shield could repair, the dent caved in again.

Boom! Boom! Boom! The subsequent force of the Nail Punch exploded on the shield one after another. Under the continuous eruption of power, Mundus’s Wall of Sighs caved in more and more, and the light of the shield flickered continuously at a high frequency.

However, Mundus’s shield was really awesome. After thirty bursts of the same power, Roy thought that he could break it, but in the end, the shield still persisted.

“How is this possible?” Roy frowned deeply. “How can this shield be so strong? Sparda, have you seen this move of Mundus before?”

“No!” Sparda stopped not far from Roy and replied while panting slightly, “When I fought Mundus, this guy underestimated me and gave me a chance to get close, so I directly sealed him. I’ve never seen him use this move… Maybe he developed this move to deal with me during the two thousand years he was sealed…”

“That’s right!” Mundus heard their conversation and could not help but respond proudly, “Give up. It’s impossible for you to break this invincible shield!”

Roy did not say anything. He summoned a gigantic black lightning bolt from the sky and struck the shield.

However, this powerful Dark Lightning bolt immediately dissipated after hitting the shield. It triggered the shield to flash, but the frequency was not as high as the Nail Punch caused just now.

A dual physics and energy defense shield… Logically speaking, this powerful shield should consume a lot of magic power, but why hasn’t this guy’s magic power decreased? Roy was puzzled. After thinking about it, he found Rafaro in the sky through the spiritual connection. “Rafaro, open your energy analysis equipment and analyze what’s going on!”

Hovering high in the sky, Rafaro received the order, and the electronic eye on his forehead glowed red. He stared at Mundus below and began to analyze.

A moment later, Rafaro’s surprised voice came through the spiritual connection. “Your Excellency Osiris, if my analysis isn’t wrong, you might be in a bit of trouble…”

“Speak!”

“Mundus’s shield has a semicircular part below the surface! It’s a full 360-degree defense!” Rafaro said. “But the part underground is where the shield absorbs energy. It connects to the entire Demon World, and the free elemental energy in the Demon World gathers through the ground to the shield. In other words, unless your attack can exceed the total amount of free elemental energy in the entire Demon World, it’s impossible to break this shield!”

“What?!” Roy was shocked. He did not expect Rafaro to analyze such a result.

“It’s true. This feeling is very similar to a Qliphoth!” Rafaro said. “A Qliphoth gathers all the energy it absorbs into a fruit. It’s the same for Mundus’s shield. He doesn’t use his magic power but the energy of the entire Demon World. So no matter how you attack, you won’t consume his magic power.”

“Is that so…” Roy thought for a moment and asked, “What if we find a way to cut off the transmission of the Demon World’s energy to the shield?”

“It might work, but the area is too large. How do you plan to cut off the transmission?” Rafaro asked.

Roy looked at Sparda, who was flusteredly dodging Mundus’s attack not far away. “Isn’t there a sealing master here?”

With that, Roy immediately flew toward Sparda and pulled him into the distance. After avoiding the attack, he explained to him in a low voice.

“It’s actually like this?!” Sparda looked at Mundus in surprise.

Roy said, “That guy can’t move with the shield. Next, I’ll do my best to attack him and attract his attention. Think of a way to set up a seal formation surrounding him that can cut off the energy transmission. At that time, without the support of the free elemental energy of the Demon World, he won’t be able to be arrogant anymore with his broken shield!”

“Okay!” Sparda nodded.

Roy did not say anymore. He immediately spread his wings and shot toward Mundus. After continuously dodging left and right to avoid Mundus’s attacks, he rushed to the front of Mundus’s shield and placed a hand on the Wall of Sighs.

Then, under Mundus’s bewildered gaze, Roy condensed a massive amount of magic power along his shield and directly cast a thick layer of black ice over it, sealing Mundus and his shield in the ice.

“Quick!” Roy looked back at Sparda.

Sparda was not stupid. Taking advantage of the black ice blocking Mundus’s vision, he quickly began to arrange a sealing formation…