When Chimon and the tall demon were walking together, they saw Kami who had a look of shock and anger on her face.
"Why are you even here Noir!?"
"Kukukuku. It was by my lords summon of course. And it seems you were having fun in the physical realm."
Catching note of the name Kami had said, he looks as the demon beside him and says, "Are you a primordial as well?"
Bowing at a 75° angle, the demon says, "I am the progenitor of the black descendants, Noir. And please forgive me for not telling you sooner."
Dismissing Noir's forgiveness, he thought of naming this one too so he could now have control two of the seven primordials.
But pushing that idea of naming Noir to the future him, they reached the main building, entered, and went to a specific room. Slowly opening the door, it appears a meeting was in session.
The people and monsters that were in the room stared at the three unknown and powerful individuals. With Rimuru not even questioning why he suddenly barged in uninvited, he continued talking to the group.
With the three standing in the corner not saying a single word for the whole meeting, Rimuru, Benimaru, Chimon, Kami and Noir headed to where Mjulan, Youm and Grucious was kept.
With Rimuru not wanting Chimon to misunderstand what his true intentions were, he informed that he wanted to destroy Mjulan's heart and give her an artificial one since Clayman was controlling her.
Hearing the name Clayman, Chimon thought back to when he was going to kill and take Clayman's skills, he got sidetracked and fought Kami.
Dismissing that memory since that was no longer a changeable event, he agreed to help and Rimuru then went on to also tell Benimaru.
Reaching the room where the three were kept inside, Rimuru, Chimon and Benimaru went in as Kami and Noir waited outside.
The reason Kami didn't go with Chimon was because this didn't seem all that interesting and because this didn't have anything to do with fighting.
For Noir's reason, well, it was just because he didn't want anybody to mess up what his new 'master' was concocting.
Ignoring the evil speech from Rimuru to deceive Clayman since he was listening in, Rimuru started walking towards Mjulan as Chimon activated [Universal Sense] and [Raphael, Lord of Wisdom].
Walking in front of Mjulan and activating [Belzebuth] to sever the connection with Clayman, he stopped, pierced her chest, crushed her heart and instantly replaced it with the artificial heart.
As Youm and Grucious were whimpering over her 'death', Rimuru says in his happy and usual tone of voice, "Great! Looks like that worked."
As Rimuru said that, Chimon looked him in the eyes and said, "I'm going to give you a demon lord's seed so you can evolve into a demon lord, Rimuru."
"Wh-Huh?"
"When someone evolves into a demon lord, they gain skills and become even more powerful. And if you're thinking of refusing, you can't."
Gaining a defeated look on his face, he then says, "Eh, alright. I mean, I can't really decline since you're my boss."
'Raphael, transfer the demon lord's seed to an individual named Rimuru Tempest.'
{Notice!}
{The transference of the item called demon lord's seed has been sent over to the individual named Rimuru Tempest}
{The transfer of the demon lord's seed has been successful}
When the transfer had been confirmed by Raphael, [Great Sage] notified Rimuru about the process which was collecting human souls.
[work in progress down below]
"Since there are Humans coming from Falmuth and the Western nation church they can act as fuel for your evolution. All you need is 10,000 souls for it to awaken".
"What, 10,000 souls is ins-".
"Don't forget that they attacked this city and killed innocent civilians. Don't you want to avenge them".
Looking down at the floor he grips his hand into a fist and says "I'll do it".
Nodding his head he turns to Youm and says "Hey, Youm. Would like to become Falmuth's new king?".
Putting a hand behind his back he says "All right. Leave it to me".
Everyone pauses while Youm says "Wait.. what. The King?".
"Yes, I'm planning on making Rimuru wipe out the entire force that's headed here from Falmuth, including the king and his top officers. Though there is one that I want alive if he's there".
"Don't you think they're causing trouble for their citizens. In that comes you Youm, where you will establish diplomatic relations. Only if you want to do it, although I can see that Rimuru wants to have diplomatic relations guessing by his expression".
"Well, uhm. If master wants do to it then I guess I also have to do it".
Talking about it for awhile they head to the capital to do another meeting about how they're gonna deal with the Humans.
...
While they were talking about how to defeat the humans Chimon, Kami, and Noir weren't even listening.
Kami and Noir were having a dispute about who's better, even though Noir was recently summoned.
Though for the device's placed for the <[Holy field]> Benimaru was going to the east, west for Hakurou, Rigur, Gobta, and Geld. Gabiru and his men were to head south while Souei and Souka would lead their party north.
With everyone now knowing of the plan they head out and get ready to their stations.
...
Chimon, Rimuru, Kami, and Noir were flying high on top of Falmuth's base. Rimuru didn't know that Chimon had revived the 100 Goblins and Hobgoblins before this.
While high up in the sky Chimon saw a mage that looked similar to a mage he was trying to find.
"Rimuru, keep that mage guy alive if you can" said Chimon as he was pointing at someone who was approaching the tent.
Getting ready Rimuru sets up a [Anti-magic area] so that they couldn't escape by teleporting out.
With that Rimuru created a physic magic called <[Megiddo]>. While watching him create it Chimon obviously stole it.
"Hey, what's a good name for a Demon if you don't mind me asking?" said Chimon genuinely asking.
Ready to unleash <[Megiddo]> he says "Diablo would be a nice name".
Turning towards the Arch Demon named Noir he says "I will give you the name Diablo". Giving that name to him Diablo was wrapped in a cocoon by his wings, but was quickly let out.
His EP was at 12,836,103 now being a super-awakend monster. Even though he didn't gain any new skills his strength significantly improved then when he was an Arch Demon. He was almost ready to evolve into a Devil Lord since when he was an Arch Demon he could have already been a Demon Peer.
Now being a subordinate of Chimon he saw that Diablo already had two Unique skills and of which were [Tempter], and [Great Wiseman]. He also had [Universal sense], [Multilayer barrier], [Spatial motion], and [Demon Lord's Haki].
Even though Diablo didn't get new skills Chimon got one new Extra skill called [Law manipulation].
Seeing something inside Rimuru's [Stomach] he uses [Belzebuth] on it got notified about acquiring a skill.
<{Unique skill, [Unlimited imprisonment] has been analyzed. Unique skill, [Unlimited imprisonment] has been successfully acquired. Unique skill, [Unlimited imprisonment] is requesting to evolve due to the influence of [Raphael Lord of Wisdom]. Unique skill, [Unlimited imprisonment] has failed to evolve]>
'[Raphael], try and find a way to evolve [Unlimited imprisonment] while I'm watching a birth of a True Demon Lord'.
Only a nanosecond had passed when this was happening inside his head. Time basically accelerated 1 billionth of a second inside his head.
Unleashing <[Megiddo]> and with not one minute passing he already killed 5,926 people. Flying down he goes to the biggest tent and sees two fat guys hug each other. Looking away from them Rimuru sees the one Chimon wanted alive.
Landing in front of them he knocks out the mage while looking at what seems to be the king and a priest.
They were even more terrified at Rimuru since he didn't care for their lives. When Rimuru was about to kill them he got notified by the Voice of The World.
<{Notice. Unique skill, [Merciless] has been acquired}>
"[Merciless], what does it do?".
When the king was talking about making diplomatic relations with him Rimuru activated [Haki] which made him shut him up.
The king was spouting bullshit again to him, so Rimuru used <[Megiddo]> to cleanly cut his arm while also using [Black flame] to stop the bleeding.
<{Notice. Analysis of Unique skill [Merciless] is complete. It gives one the power to seize control of those who plead for their lives or seek aid. Meaning if one loses one's will to fight in the face of this skill, it will mean their death}>
Wanting to test the skill Rimuru flys a little bit away from them and uses [Merciless] on the remaining soldiers.
Flying back to the king, Archbishop and mage he gets a notification.
<{Notice. Checking the number of human souls required to cause the seed to sprout, the continuation for evolution. Verified. The conditions have been met. The Harvest Festival will now begin}>
When Rimuru got a sudden sense of sleeplessness Chimon deactivated the <[Anti-magic area]> and told Ranga to bring him back to the city.
While Chimon, Kami, and Diablo grabbed the three survivors Chimon teleported them back to Abyss.
...
Everyone who was in Abyss heard the Voice of the World.
<{Notice. The Harvest Festival to evolve the individual call Rimuru Tempest into a Demon Lord will now begin. Upon completion, gifts will be distributed to all those connected to said individual}>
With Rimuru and Ranga coming they put him on a pedestal so they all could see his evolution.
<{Notice. The Harvest Festival has begun. The individuals physical constitution will be rebuilt, and he will evolve into a new race}>
<{Confirmed. Super-evolving from slime race to Demon slime race. Successful. All physical abilities have been significantly improved. The individual can now freely change his material and spiritual bodies. Next, all skills and resistances already acquired by the old form will be re-acquired. Successful. New Intrinsic skills: [Infinite regeneration], [Universal sense], [Demon Lord's Haki], [Enhanced replication], and [Universal thread] has been successfully acquired. Successful. New resistances: <(Natural elements nullification)>, <(Ailment nullification)> has been successfully acquired. Successful. This completes the evolution}>
<{Notice. Petition to evolve Unique skill, [Great sage] to the Voice of The World}>
<{Requesting evolution of [Great sage]. Understood. Request for Unique skill, [Wise One] accepted. Unique skill, [Wise One] will attempt to evolve. Failed. Repeating attempt. Failed. Repeating attempt. Failed. Repeating attempt. Failed. Notice. Unique skill, [Wise One] will sacrifice [Degen] to receive the Harvest Festival gift and attempt evolution. Successful. Unique skill, [Wise One] has evolved into Ultimate skill, [Sophia]}>
"Evolution of [Xenomorph] desired. Sacrifice [Merciless] to execute".
<{Successful. Unique skill, [Xenomorph] has evolved into Ultimate skill, [Apex]}>
When the rainbow glowing out of Rimuru stopped everyone heard the Voice of The World.
<{Notice. The individual Rimuru Tempest's Harvest Festival is complete. Now beginning the bestowing of gifts upon those connected to him}>
The monsters that Rimuru named were having Unique skills integrated into their souls which were a lot. The monsters that Chimon named weren't that much, but when he gained the two Ultimate skills they should have gotten the same thing as the gift.
<{Notice. Evolution of Unique skill, [Unlimited imprisonment] is now commencing. Unique skill, [Unlimited imprisonment] has evolved into Ultimate skill, [Uriel Lord of Vows]. Ultimate skill, [Uriel Lord of Vows] has been successfully acquired}>
...
They waited three days for Rimuru to wake up from his slumber. A lot of monsters had evolved, gained Unique skills, or had just simply gotten stronger.
In those three days Diablo appointed himself as Chimon's butler. Diablo didn't need a body to possess since he could handle being in the physical world for a long time, but insisted on getting a Dragotite body.
They were also rebuilding the city while they waited for his announcement of becoming a Demon Lord.
When the third day arrived Rimuru saw a lot of monsters rebuilding the town, but suddenly got a notification from his skill.