Demon Lord's Reincarnation

After their trip to the underworld, the three childhood friends returned to New Grenton. The conquest of the dwarven kingdom was put on hold while the three were recuperating.

As the days went by Lara was finally able to stabilize her soul and regained the memories of all her past lives. Once all her experience and skills came back a drastic change happened to her body. 

Lara who was already a beautiful maiden turned even more breathtakingly beautiful. Her body had seemed to grow into something exotic. Not only did her outside looks change but she now had this mature vibe coming from her that wasn't there before. Not to mention she was now more expressive thane before. 

Lara had now become as powerful as Tsukiyomi and Silika, so the moment she regained her power the first thing Lara did was challenge the two. The three of them battled it out for days while Ren was sleeping. Sometimes Lara would win, other times Tsukiyomi, and then Silika. The three of them were equally matched and it was hard to gain a clear winner. 

Yet despite the sparring matches between the three of them being fierce and extremely violent, the three were still able to form a sort of bond. They weren't as close as sisters but they were now more than friends. 

...

After the incident in the underworld, Valdel had gained the knowledge of the Valdel within Lisa's dream. Unlike him, the Valdel in the dream was physically weaker with less mana, but his techniques and experience were leagues above the original Valdel's own techniques. Now that Valdel had all of the dream version's knowledge he started training. After a few weeks of training, the effects were extraordinary. 

The techniques used by the dream version combined with Valdel's power became something beyond what he expected. The current Valdel was now at least three times stronger than he used to be. Just a little bit of training and this was the effect. Valdel could only imagine what heights he would reach once he masters all of these techniques. As Valdel grew stronger so did his swords Zwei and Nika. 

...

It took Ren several months to recover from the backlash he received using the original incarnation's power, but the moment he woke up he felt his own power had risen to unimaginable heights.

He had understood a minuscule portion of the original incarnation's power to control one's soul, it was just a little thing but it had given him power that far exceeded what he currently had. 

With his current strength, Ren could fight Ten Demon Lord Kretoses with relative ease. So the moment he woke up, he wanted to do a quick warm-up and fought all of the warriors in the castle. He even allowed Tsukiyomi and the others to join in the fun. 

Those that didn't join in the fight watched from the sidelines. At first when they saw how many people were joining in and knowing how strong some of them were, everyone thought that even Ren would not be able to win so easily, yet the reality was different from expectations. 

Ren had easily decimated the opposing force. Tsukiyomi, Lara, Silika, and Valdel were the only ones left standing at the end, but even they could not even get close to Ren. The battle then ended with Ren's overwhelming victory. 

After winning the battle, Ren did the next thing he liked to do: eat till he was full. He had been asleep for several months so he ate practically several months' worth of food. This time it was a battle between Ren and the palace chefs. 

Ren would devour every meal in his line of sight and the chefs kept on bringing him more food. Ren continued to eat for a full day before he was satisfied. Most of the chefs in the kitchen had fainted due to over-exhaustion. 

...

Now that Ren had woken up and was even stronger than before the plan to attack the dwarven kingdom commenced. Ren had made his disciple Arthur join this battle as a foot soldier under Lance's command which consisted of all the people Ren personally trained. 

The army Ren sent consisted of only two hundred men, and the army of the newly united dwarven kingdom had more than a hundred thousand, not to mention there was a Primordial Demon hidden in the mix. There were also their fortresses to worry about which were said to be the strongest in the entire continent. Those fortresses' defenses were rumored to be strong enough to handle an attack from an adult dragon. 

Despite knowing the military power of the opposing army Ren didn't add more to the army he sent. In fact, Ren wasn't even among those that would attack. Now that he had gained too much power, fighting the dwarves wouldn't be too much fun, which is why he decided to use this battle to train his students. On the other hand, while the others were attacking the dwarven kingdom he decided to attack the dragons instead. 

...

Upon arriving at the dragons' nest, Ren immediately noticed that there were only a few dozen young dragons present. Ren sighed as he felt that the dragons present weren't enough to get him excited. Still, since he was already here it was time to conquer them. 

The young dragons who had noticed Ren standing above the clouds were about to attack when Ren suddenly spoke to them in the language of dragons. 

"Submit or die!"

When Ren said those words he unleashed a portion of his mana. The moment he did so the clouds started to darken and the ground started to shake. It was like the time when Alphonso unleashed his own mana, the environment changed. Same as Alphonso the current world was having difficulty supporting Ren's power. 

When the young dragons felt Ren's mana their entire bodies stiffened. This was the suppression of a strong being. The young dragons looked at Ren as varied emotions overwhelmed them. There was hatred, anger, but most of all there was fear. 

The weaker half of the younger dragons could not handle the pressure they felt and submitted to Ren. To them, it was not shameful to bow down to the stronger one, but the other young dragons did not comply. They were dragons, they were born as the strongest species in all the universes. How could they allow themselves to be subservient to a human, it was not possible.

The rebellious young dragons roared as they shook off the fear they felt and attacked. Seeing the young dragons flying towards him Ren sighed. Since the other young dragons had already submitted he could not use his aura to force the others down since that would affect those that are already under him. 

"I didn't really want to fight weak young dragons, but I already said submit or die."

Ren pointed his finger at a nearby dragon and a burst of pure mana pierced its skull, and just like that one dragon was killed. 

When the other charging dragons saw what had happened they did not back away instead they charged forward even faster than before. Ren then used the same technique to kill the remaining rebellious dragons. Seeing that the fight was over Ren felt a bit disappointed. 

A few months ago he was so excited to conquer the dragons, as he imagined that fighting young dragons would have been a great battle. When he was still Demon Lord Kretos it took everything he had just to beat one young dragon, but now he was so powerful that he could kill young dragons like he was killing ants. 

'I guess I've grown too strong for this mortal plane... Should I wait for Valdel to get stronger or should I just go now and wait for him on the other side?'