Demon Lord's Reincarnation

It has been a couple of weeks since Ren started hunting the monsters in the nearby areas. He nearly killed every living monster near his vicinity, and only left some of them. He was warned by the Adventurers Guild that he shouldn't kill every single monster, he must at least let some of them survive. It would seem that killing all the monsters was not a good thing since they weren't necessarily bad for humans as they use them as materials for weapons, armor, and everyday items. Some monsters were even used for creating medicine, while others were tamable beasts. 

At first, the Adventurers Guild thought that Ren would only subjugate the number of monsters written but he did not do so. Instead of simply killing the number of monsters requested, Ren kills most of every monster he sees and sells the parts to the guild and others to some merchants he knows. 

When the news of his killing spree reached the top brass of the Adventurers Guild, the Guild Masters of each nearby town came and requested Ren to limit his killing. Of course, Ren didn't want to listen to them as he claimed that no one can and should tell him what to do. If they force him to do something without any compensation then he would just kill them as well. 

The Guild Masters already expected such an answer from Ren, so they have prepared a compromise. They promised Ren that if he limits his killings to half the amount, they would double the amount they paid for the monster parts he has. Ren who was in control of the whole conversation readily agreed.

...

That meeting happened a few weeks prior and now Ren had finished over fifty subjugation quest coming from six different towns. Ren wanted to hunt some more before he faced one of his past incarnations in battle, but he already wasted too much time. He needed to return to New Grenton as he feels that the prey he has been baiting was about to strike. 

...

"Master I promise to come after I finish cleaning up the trash in my family. Once I'm done I will head to New Grenton with my whole army at hand." Lance spoke with a very serious tone as he was now reluctantly about to part way with his master. 

"No need for that, just come by yourself. The citizens of New Grenton need to be baptized by a few more wars to be worthy to be called my army." Just thinking about the future battles from here on out filled Ren with indescribable excitement. It was at this moment that he was feeling a bit of fire coming from his lower region. He really hated these intense human emotions that seem to all be connected to his libido. Still, Ren tried to calm himself down as he decided to do it with Silika a bit later while on the road. 

Unaware of the short internal struggle that was happening to his master, Lance nodded his head in response. "Then I shall bear witness to your superior tactics." 

"Oh, I don't plan to help the people of New Grenton in strategy. I'll allow them to fight by themselves for a period of time. When I feel that the experienced they gained is enough I'll step in and give a helping hand." Ren spoke nonchalantly as he shrugged his shoulders. 

'As expected of my master, in his eyes the army of this Kingdom is nothing more than training dummies. Well with his current power, he could probably fight the whole army by himself, that is if the Kingdom doesn't have any hidden trump cards... It's master I'm talking about, so there is no need to worry about that.'

"Then Master I hope you have a safe trip." Lance bowed towards Ren showing his respect. Ren waved his hand as he and Silika left the Resteti's estate. 

Seeing the fading silhouette of his master, Lance felt a bit sorry for the enemies of his master. They don't know what kind of being they were provoking. When Lance thought of that he couldn't help but smile. 

'Well, it didn't really matter if they provoked him or not, master was already planning to conquer them no matter what. They just made it easier for master to justify his counterattack.'  

...

While Ren was heading back to New Grenton, the first prince and his army were about ready to march to New Grenton. He has prepared everything he could for this day. The moment he wins a great victory in New Grenton, the other noble factions would see that he was the better choice as the next king that would lead them to a new era. 

As the army was about to march a knight accompanied by a cavalry approached the first prince. The Knight was none other than Sepchel Saulon. 

"My liege, I implore you to reconsider! Please try to make amends with Ren! If you just listen to his demands I'm sure he would grant you the crown. If you go with the second prince and attack him then the Reschbeauch Kingdom might cease to exist." 

The soldiers under the first prince were shocked to hear what Sepchel said and morale started to lower. This was because of Sepchel's influence, who doesn't know of the 'perfect knight' Sepchel Saulon? The most loyal of knights, the most skillful of swordsmen, the most brilliant tactician. Even the other kingdoms know of him, much less the people of his own kingdom. 

If Sepchel was saying that fighting Ren was suicide then maybe it truly was. Seeing his men morale greatly decreasing, the first prince Reynold frowned. 

"Is that how a knight of the kingdom speaks, full of cowardice? This Ren alongside a person claiming to be my brother has basically committed treason, and you wish for me to sit back and beg for mercy?! We are a kingdom of warriors! Backing down and bending over to the enemy will never be an option! So if you wish to stay and hide, then tremble in fear like the coward you are. But if you wish to fight for the kingdom as its knight then join me in battle, to prove you're worthy of your title!" 

"I shall prove I am worthy of my title as a knight of the kingdom, by protecting you my liege." When Reynold heard what Sepchel said he felt relieved, but then he saw Sepchel draw his sword and pointed it at him. 

"I shall protect you by keeping you here!"