Demon Lord's Reincarnation

The battle against the dwarven kingdom took longer than expected. Even with Lara, Tsukiyomi, Silka, and Valdel within the army, the fortresses would not fall easily.

Even though no dwarven warriors could face the weakest of the army Ren sent, but the fortress itself was a miracle. Even after being bombarded by Tsukiyomi's powerful spells, it did not fall. Even with Silika's numerous skills could penetrate its defenses. Lara's alchemy and Valdel's luck were also not enough to break the dwarven fortresses. It turns out the dwarves truly were the greatest craftsmen on the entire continent. The fortress they built stood tall without a single scratch, which made even the calm Silika grit her teeth in frustration. 

On the other hand, the dwarves could not retaliate. At first, they tried sending out their armies to greet Ren's army in combat. The morale of the dwarves at the beginning was extremely high. They were even angry at the humans for looking down on them by sending only two hundred men against their hundred thousand strong armies.

The dwarves sent out ten thousand men to intimidate Ren's army. The dwarves were rather confident in winning this battle as they had numbers on their side, not to mention their superior equipment. 

Dwarves were not only good at building fortresses they were famous as the best blacksmiths on the entire continent. Their weapons, armor, and technology were far, far ahead of the other races. In their minds, they had a zero percent chance of losing, yet reality was cruel. The moment they clashed with the humans they were immediately wiped out. 

Those watching from the fortress's walls were dumbfounded at the sight. While they were still trying to comprehend what they just witnessed their heads were suddenly pierced by arrows or spells. The dwarves then quickly hid within their fortress not even daring to look outside. 

The moment the dwarves started hiding inside their fortress while focusing solely on defense was when Ren's army stopped marching. 

It then turned into a battle of attrition, and to see whose supplies would last longer. Unfortunately for the dwarves, this was a losing battle. They tried to last for as long as possible while trying to think of a way to make their enemy withdraw their forces. Yet no matter what kind of plan they thought of none of it was working. 

Seeing that their food supply was running out, and they had no way to retaliate the dwarves finally surrendered after a stand-off of five months.

The moment the dwarves surrendered the hidden Primordial Demon who had watched the entire ordeal was frightened. At first, he wasn't sure but now there was no doubt he had recognized two women within the army of humans. One of them was the Strongest World Deity that once governed over death among hundreds of planets, while the other was the famous killer of a hundred Gods. 

Those two were beings that he had no hope of facing. The Primordial Demon who had fled the scene was suddenly stopped by an unknown human. At first, he thought that the human before him was just some random passerby but then he saw the smile on the human's face. When he saw that smile he suddenly remembered a similar smile coming from the one who had sealed his entire race into that cave. 

'Wait a minute, both Tsukiyomi and Elizabeth Rogue are here and there working together, then that must mean this person is-' Before The Primordial Demon could even finish his thought he was killed and his soul captured. Ren then placed the Primordial Demon's soul into his soul realm, after he was done doing that he left. 

...

Even though they had won without a single causality Lara and the others felt ashamed to face Ren. They had taken too long to conquer the dwarves while Ren took only one day to tame the dragons. Still, Ren did not blame them for taking too long, but he decided to retrain all of them, including Lara and the other powerful ones in his group. 

...

After conquering the dwarven kingdom, all the remaining kingdoms in the continent not under Ren's rule decided to form an alliance to defend themselves from Ren. In this alliance, most of the human Temples had joined, except for the Temple of Justice, War, and Death. The three Temples instead allied themselves with New Grenton. 

The allied kingdoms felt extreme hatred towards the three temples, but among the three the one they hated the most at this point was the Temple of Justice. How could justice side with a ruthless conqueror? Still, what's done is done they could do nothing about it.

While Ren was busy training his men and stopped his conquest in the meantime, the allied kingdoms started to gather any information they could about Ren. They needed to find out what kind of ruler the person called Ren was. So each Kingdom sent dozens of spies into Ren's territory. 

Finding information about Ren was not as difficult as they expected. The spies they sent returned rather quickly and the facial expression on their faces was quite a sight to behold. The rulers of each Kingdom and the Temples did not have time to contemplate why the spies looked that way and asked them to report their findings. 

The spies who were in a dazed state were shaken awake and what replaced their dazed look was a look of fear, and with great difficulty, they started reporting the information they gathered. 

When the rulers heard the report of the spies they were horrified and the more they heard the fearful they became. It turns out the person called Ren wasn't just a King, but he was also a fierce warrior and it was no exaggeration to say if the reports were true Ren would be the strongest of all warriors. 

After learning each one of Ren's many accomplishments the rulers, as well as the head priests, were suddenly falling into despair. Not only was their opponent a mighty warrior with a mighty army, but he also controlled several dragons the mightiest of creatures. The meeting of rulers and head priests suddenly turned chaotic. 

"What should we do?!" 

"How do we face such a monster?" 

"Should we surrender?" 

"How can you say that? If we surrender to such a monster won't our lives become a living hell?" 

The voices of the rulers and head priests became louder and louder as fear and despair gripped their hearts, it was at that moment someone gave an interesting suggestion that made everyone quiet down. 

"How about we try using the ancient spell of hero summoning?"

"Are you talking about the one that humans used to defeat the strongest Demon Lord, Demon Lord Kretos?"

"Yes, that's the one." 

"That might actually work. It is said that heroes summoned by the ancient spell are those with unrivaled powers and are blessed by the Gods."

"Records even say that those heroes are stronger than those heroes from the Temples." 

The rulers and head priests could finally see some hope with the use of the Ancient spell of hero summoning. If even Demon Lord Kretos could be defeated using this spell then Ren no matter how strong he was would fall as well.