"Sir Pestlor, are you sure about this?" Hazak asked as he gazed at Krune, feeling nervous.

"Sure. I wanted to see how strong a normal Red Demon is," Krune replied, flexing his arm as he felt his muscles twitching. It had been four and a half years since he had arrived at Layer 2. During that time, he managed to reach the peak of Tier 4.

His body now weighed 1400 kilograms, a colossal weight. He could feel the tremendous power dwelling within him. Also, it wasn't just his physical body alone that had been strengthened.

When he arrived at Layer 2, he weighed around 100 kilograms. Now, he was 14 times heavier. As the development effect of the Essence worked in improving his body as a whole, all his passive and active abilities had also improved.

After all, they were physical traits that were rooted in his body. As his body grew stronger, it meant they grew stronger. The most important of this development was the strengthening of his heart.

Of course, by the strengthening of his heart, it meant that his Ocean Heart developed. The energy in each crimson ring was 14 times denser as compared to back then. His healing effect was similarly 14 times more potent, same for the development effect.

And now, even after reaching 1400 kilograms, Krune realized that he didn't feel the limitation a human in Layer 2 might feel. That was, being unable to surpass this limit without ingesting a Tier 5 Essence.

As for him, the development effect of his Ocean Heart allowed him to grow stronger even beyond that. After all, the development effect wasn't sourced from the Essence in Layer 2. In actuality, it was sourced from the Development Spheres Gehen had given him.

So, in technicality, Krune didn't face any limitations. However, unlike when he grew in Tier 4, he was barely gaining 20 grams per day upon entering Tier 5. It showed that even though he was still able to grow strong, the efficiency was the lowest.

With that, it was better to obtain a Tier 5 Essence first and upgrade his development effect to enter the level of Tier 5. Moreover, even though his current development effect only gave him an increase of 20 grams per day, it made Krune assured of a certain fact.

He could grow his body without any limits!

This assured him that even if the growth was slower, he would still be able to increase his body's weight and grow stronger after returning to God Realm. That alone meant the world for him. After all, he had obtained something that would strengthen him constantly, just like Godly Energy and Mental Energy.

Moreover, he was currently only relying on the Tier 4 development effect. With that in mind, Krune looked forward to the Tier 5 development effect. He knew his development speed would be greater than 20 grams per day even after hitting the peak of Tier 5.

As long as he did this, Krune's prospects while reaching God Realm would be even higher. However, there was also another reason he bode his time while waiting.

By this point, he was assured that the one he sensed while departing from Layer 3 was his wife, Feifei. Judging by the strength he felt from her, she was still far away from obtaining an active ability.

So, he planned to wait for her to arrive at Layer 2. And for that, he needed to make his move first and lay out all the necessary groundwork. That way, once she arrived, she wouldn't have to face the horrors he had faced.

Of course, the first step to achieve that was to kill a Red Demon. To achieve that, he had to get used to the strength of a Red Demon first. Hazak was the best option to achieve this. It was able to limit its strength perfectly now, thanks to Krune's teachings.

By limiting itself to a regular Red Demon's strength, it was the perfect opponent for Krune to face against.

Currently, they were within the training room that had been reinforced using Hazak's bones. Thanks to his healing effect and the excess energy he obtained through his meals, loping off the limbs of Hazak and completely healing it was simple.

On top of that, it also allowed him to train his healing abilities to a new level, now able to efficiently heal anyone he encountered. Moreover, in this way, Krune also used Hazak to train himself against the miasma, building up resistance against it.

Even though he had been training with that routine for more than two years, Krune hadn't even achieved the first step in developing resistance against the miasma. Rather, as he continued to breathe it, his internal organs began to melt.

The only way to increase the duration he could withstand it was by increasing the density of his body. Thankfully, while he used Ocean Turbulence, Krune relied on the healing effect to last longer. But despite everything, three hours was his limit.

Beyond that, even his healing effect failed to prove useful as his body began to rot and melt.

"Hazak, don't hold back," Krune said as he stood barefoot in the training room, not carrying any weapons. Wearing a simple white pajama, he smiled, beckoning Hazak to attack him. "Only stop an inch before I die. Attack me!"

Krune stared at Hazak, feeling his heartbeat become more intense. His vigorous thumping resounded throughout the room like thunderous war drums, enough that a normal human might shut his ears to avoid damaging his ear.

The training room was shaped like a circle with a radius of 25 meters. It seemed massive at the start, but for experienced fighters at higher tiers, it was a narrow space to move within. Of course, Krune was well within that range to make the space feel cramped.

Now that he planned to go all out, even Krune was curious as to how strong he had become, having been unable to go all out before. Most of the time, he only used his physical body to fight, at most relying on his Sonic Radar to sense things.

He hadn't erupted with the entirety of his strength even once. And now, he took the opportunity to do so, knowing very well that his opponent was someone who wouldn't die under his attacks. Currently, the two were separated by a distance of 40 meters.

Right as Krune finished speaking, a fist was planted on his face, followed by a sonic boom as his body flew back like a bullet.