Fian, the younger brother, used his movement skill to approach Krune while taking out a Halberd. When he close to, he noticed that Krune didn't look as if he was surprised at all.

"Hehe! Let's see how long you can keep acting cool."

"Earth Nova!"

Earth Element gathered around Fian's weapon while it came hacking down. This was an attack that not only had high destructive power, it also connected the Earth Element on the weapon with the Earth Element in the ground to immobilize the enemy.

Just as the attack was about to connect, Purple Lightning started to flow around Krune's human body.

"Tribulation Lightning Movement, 60%."

Zap!

In a flash of purple light, Krune disappeared from his position and reappeared over a hundred meters away. Fian's mouth opened wide when he saw that. Even with his Divine Sense, he could only barely keep a tag on Krune's movement. He was obviously much faster than his fastest speed.

'That's what brother meant with something was fishy. So this couple really has the confidence of taking us down.'

He then took a glance at his older brother's battle and noticed that he was also having difficulties to keep up with the girl. It could even be said that she was going easy on him since she used nothing more than Water Element attacks.

Fian then returned his attention to Krune in the distance, but just as he was about to charge once more, he noticed several things flying around. He didn't even know when they appeared. He looked at them and felt danger like never before. It was then that he heard a Divine Sense message.

"You shouldn't pay attention to others' battles. If not because I still have several tests to do, I would have used this chance to finish the fight already."

Fian immediately understood that the situation wasn't good. He then charged at Krune once more while sending his brother a Divine Sense message as well.

"Fien, I'm probably not this guy's match. Should we flee or go all out?"

Fien, who was starting to get nervous, received that message and pondered a bit.

"I checked my opponent's speed. I'm definitely not her match in it. It also seems like she is not using her full strength. What about you? Do you think you can overrun your opponent?"

Fian then answered.

"Not a chance. The speed that he showed just now is definitely much faster than me. In fact, he is much faster than you too."

Fien heard than and then said.

"Then let's go all out. Those two came to deal with us, and we are too far from father at the moment. I already sent a message to him, but it will definitely take at least 20 or so minutes before he arrives. Do whatever you can to hold them back until then."

Both brothers then took a black pill out and swallowed it.

It was a pill made for this kind of emergency. It could increase their combat prowess by a lot for a small period. Just enough for them to hold on until their father arrives. Of course, there is quite a harsh side effect to it, but they couldn't care less at the moment.

Feifei and Krune saw that and smiled. A battle that was being easy to control just got a lot harder. Fien's attacks finally started to pass through Feifei's defense while Fian's speed could now barely keep up with Krune.

Of course, Krune wasn't going all out, and he had no intention to do so.

'Alright, I guess I can start it now.'

Fian noticed that suddenly, Krune's Tribulation Lightning started to act weird. It was as if it was going out of control.

'I don't care about what is happening, but this is a good thing for me.'

He decided to take this chance to increase his attack power even more.

Krune looked at him and smiled.

"Tribulation Thunder Line."

Fian saw Krune directing that attack at him, and his heart almost stopped. It was just too fast! That wasn't all, different from the previous attacks, it seemed like that the energy used on it was also a lot higher. Fian only had the time to step aside while using his Halberd to more or less parry the attack.

*Crack*

The attack hit the Halberd head and changed direction slightly, just enough to pass beside Fian. But it wasn't without a price. The Halberd Head crumbled down after that. Fian's weapon was destroyed just like that.

Krune, too, was impressed by that. It was the first time he used a Tribulation Lightning attack with his understanding of the Flash Annihilation Law.

Both Krune and Fian had the same thought.

'This thing is too strong!'

Fian came back to himself and immediately switched weapons. With all the loot that he and his brother got around the region, both of them had quite a few weapons on their hands.

Krune then stopped using the Flash Annihilation law before it made his Tribulation Lightning go out of control.

'I can't keep using all the time. I'm going to use it just a second before I use an attack or movement technique. That way, I should be able to keep control.'

Fian knew that running would be useless, so he paid attention to when Krune's Lightning Power changed like it did last time. Just like that, they exchanged several attacks. Of course, Krune is an adept of Long Ranged attacks. The exchanges were all between Fian and the attacks that Krune used from far away. That's because every time Fian caught up to him, Krune's Lightning would go weird again, and his speed increased a lot because of that. Krune was also using the Flash Annihilation Law in his Tribulation Lightning Movement!

But there was one thing that Fian was concerned about more than anything else. He already noticed that those things flying around were Shields. But so far, Krune didn't use them for either attack or defense. Then, what were they there for?

It was not that Krune didn't want to use them. Krune was trying to connect his understanding of the Flash Annihilation Law together with his Shields. But it proved to be a lot harder than he thought. That was the only reason why he hasn't used them until now.

Still, the more Krune failed trying it, the better he understood his mistakes. After 5 minutes of battle had gone by, Krune finally succeeded in connecting one of his attacks using laws with one of his flying Shields.

"Tribulation Thunder Line."

Fian's mouth twitched.

'That attack again?'

Fian immediately dodged and kept charging. But just behind him, the Shield that Krune had connected with appeared and was hit by that Thunder Line. Right after, the same attack was sent back at Fian once more.

There is a difference between changing the direction of the Tribulation Lightning normally and doing it with his Shields. The speed that it could be done! Normally, the Tribulation Lightning would need to do a curve before going back. Just like Light Spirit did back then in the Katiu Forest. But Krune's Shield simply reflected it back straight away. Of course, both ways had its advantages.

Krune could have his attacks, like the Tribulation Thunder Line, to change direction before it hit the target. For example, he could have it make a small curve at that time when Fian dodged to the side and had his Halberd destroyed. That was a situation where using his Shields to change the Tribulation Lightning direction would be a lot worse.

Fian had been paying attention to those Shields flying around until now. So when he saw the Tribulation Thunder Line being reflected right back at him, he immediately dodged. Still, the attack was as fast as ever, so it barely hit his right shoulder. Although the damage wasn't anything serious, it made Fian understand that the situation was indeed a lot worse than he expected. After all, there isn't just a single Shield, but 38 of them!

There was a reason that Krune needed to connect his understanding of the Flash Annihilation Law with his shield. That's because if he didn't, there was a big chance that the Tribulation Attacks would cause his Flying Shield to have the same destiny as Fian's Halberd. It wouldn't be able to reflect the attack by having only Tribulation Lightning imbued inside as it always did.

"Good! It really worked! I think I understand how to use my laws in my Flying Shields now. Let's try a few other attacks."

Fian heard that and felt a chill on his back.

"Tribulation Thunder Line!"

"Tribulation Blade!"

"Tribulation..."

Attack after attack started to come out. Fian, who had been both defending and attacking Krune until now, changed into a full defense instance. He completely gave up any idea about attacking Krune anymore. There were just too many attacks!

Krune was feeling great at the moment. His control over the Flash Annihilation Law improved with every attack. His Shields reflecting the attacks only flashed with laws for a second to reflect the attacks and then returned to normal. With that alone, his attack power had increased by leaps and bounds.

It wasn't after 10 full minutes of fight that Krune finally stopped his barrage of attacks. As for Fian, he could barely stand anymore. If not because Krune wasn't trying to finish him, he would have lost already. Never in his life, he thought that a Core Formation Realm demon beast would push him so far.

Suddenly, Feifei sent Krune a Divine Sense message.

"I have already tested everything I wanted to. How is your side?"

Krune then answered.

"I think I got a good grasp of how to use the Flash Annihilation Law. I'm still a little far from keep using it all the time. But I can at least use it for a second in every attack now. I can also use it on my Shields the same way. I believe that this is the limit of what I can do with the Initial Stage of understanding."

Feifei nodded and then said.

"Alright, let's finish it then. Staying here too long might attract unnecessary attention."

Krune agreed with her, and their stances changed.