A New Demon King

*Huff Huff Huff* I fell down to one knee after finishing our battle as I let my mangled arm hang off my side before I looked at it.

"Damn…. I don't think that will be working anytime soon….." I say before I rip off the remains of my arm and toss it to the side before my body sealed up the opening on my shoulder.

I then turned to look at the two Upper Moons who were both shocked at the death of their Master Muzan, but even more surprised why they weren't dead, they were so surprised that they didn't realize that their bindings were removed, or that their wounds regenerated as they watched me approach them.

"Let me guess, how are you alive while he is dead? It's simple, as I killed him I stole his authority over all demons, thus I became the new Demon Progenitor, and since I am that now, it makes me your new master whether you two like it or not." I said before I crouched down and looked at them both.

"But you both have your worth so I see no need to kill you both, and as a bonus I'll give you and the rest of the Twelve Demon Moons, your direct subordinates and the 100+ Demon Moon Candidates, something that had your previous King achieved he would never have allowed any of you to gain, immunity to the sun." I said as I saw both of their eyes widen at what I offered a majority of the strongest Demons was the power to beat their greatest enemy, the sun."

"Of course if anyone refuses to bow I'll just have to get rid of, and don't assume my state would even remotely make me a easy target for you to kill." I said as both as a warning and a threat.

*Snap*

I snapped my fingers as the Biwa Demon began to play her Biwa as the Infinity castle rearranged itself resulting as the merger of multiple rooms, brining back all of the Upper Moons, who were beaten or restrained by the Darkness Devil appeared all in the same room as me while my women appeared and sawed my injured form.

But I just raise my arm and they decide that they can ask later as I looked at the rest of the Upper Moons with one noticeably missing but I could care less as I looked upon them all.

"Your King is dead, and I have taken his place and thus I am the reason you lot are even alive right now after his death."

"But if you wish that you would rather choose death than serve me then I'll just kill you, but you do serve me then I'll give you all the gift that every being that fears the sun desires, to walk under the suns light and conquer it." I say giving them a rather lucrative gift for their servitude.

"The choice between Death and Conquering the Sun is a very difficult choice to choose, but since I don't have time to wait I want an answer now or I'll just destroy you all for wasting my time." Even if I was only one armed for the time being just because their connected to me I just need to think about it and they will die so long as I desire it.

So they didn't really think of it before they all knelt before me and lower their heads, "We live to serve you Lord Dio!"

"Hmph, good, now then, this is gonna hurt, but you'll no longer need to fear the sun." I said as I approached them in order of rank before I used my free hand to stab my fingers into their necks before pulling out and allowing them to under go metamorphosis as at least only Hatengu, Gyutaro and Daki grunted out in pain before they all were enveloped in cocoons before the Biwa Demon, known as Nakime, sent them to a separate room of her own will without saying anything before I looked at her.

"Do you wish to serve me of your own will?" I look at her as after all I basically forcibly controlled her body to suit my needs the entire time after all.

"…. So long as I can do the things I love I care not for who my master is…." She says as she gently holds her Biwa as she tunes it while running her fingers over the strings.

"I see, and your loyalty will be rewarded, but we need a larger separate room from this one." I say and all she does is just nod before playing her Biwa as the very castle began to change before we all ended up in a completely different room that was large enough to house well over 200 people within it.

"Good." I then snap my fingers and portals made of darkness appear all across the room as all the Lower Moons and the Demon Moon Candidates all were pushed, pulled out or just out right thrown out of the Darkness before they all appeared before me as I heard grunts of pain and looks of confusion from all of them before they turned to look at me.

"I'll make this quick, Muzan is dead and I am now the new Demon Progenitor, anyone who is against that well…." I say before I decide to use a random demon as an example.

*Snap*

"UGH! GAAAUUAAAGGGGGHH!!!!" *BOOOM!!!* and with a snap of my fingers I made the demon explode into a pile of blood and guts.

"So any questions?" I ask as I look them all over to see the rather terrified looks on their faces while they said nothing.

"No? Good, then I shall reward you all with a gift, the Demon Moons and a new ranks that I shall call the Night Parade of 100 demons, you all will be given what every demon desires, the ability to conquer the sun." I said making my counter offer for their loyalty in return.

Hearing that, and feeling through his connection with him that what he said was true so with the thought of never having to fear the sun ever again they all dropped to their knees and pledged their loyalty to their new king.

And after that went the surprisingly quick process of transferring my blood into them as they all began to go through Metamorphosis as a result of their bodies changing before the room with the Upper Moons merged with this one as all of the cocoons were now in one place before the last one I changed was Nakime before I left them and went to a separate place with the rest of my women.

"Now go and leave me be, you all deserve a rest…." I say as I looked at them with a look that I wouldn't take no for an answer.

Seeing this they reluctantly left to see the many other places of the Infinity Castle for the time being.

After finally feeling I was truly alone I breathed out a sigh.

"Guhkah!" Before I fell to my knees and coughed out a large amount of blood from my body, no one was able to tell but that fight with Muzan had caused heavy damage to both my body and soul from that fight.

*Spit* "hehe…. It seems I won't be able to use The World for awhile…. Everything feels severely damaged from that fight, my arm won't heal, The World is in Pieces, and my Nen and Haki are heavily weakened as a result…. It's going to take time for these all to heal, but with the shop and rewards I believe I'll heal soon enough…. Speaking of which…." I say to myself before I open my rewards for what I have done.

*****

(Personal Quest: Who is the Real King of Monsters)

(Description: in this chat group 2 kings of the night have met and they both knew since the moment they saw one another that one of them had to die, who will win? The Demon King of the East? Or The Demon King of the West?)

(Objective: Kill Muzan Kibutsuji and take his remaining Demons under your command and free them from the curse of the sun)

(Rewards: Night Parade of a Thousand Demons, rights to the world of Demon Slayer)

(Bonus: Accepted to allow Restrictions to be placed upon one's self increasing Rewards befitting said Restrictions)

(Total Rewards: Night Parade of a Thousand Demons, Right's to the World of Demon Slayer, Title: Demon King, Servant Summoning of Saber/Assassin/Berserker, Souls of 36 Sinners & The Spirit Kings Ring)

"Hmmm…. I guess I won't have to use my wish after all…." I say with a slight grin before pulling out the Spirit Kings Ring and wearing it myself.

"But for now I should rest…. It will take time but I'll heal soon enough…." I say before I lay down on my side for a well deserved rest.