While Eiji spent a wonderful night with the ladies of his house. His bed even continued to shake until morning.
Let's rewind a little to the first time Miss System meowed to her host that she felt a familiar energy fluctuation.
The source of those energy fluctuations was in the underworld.
It was far away from Lucifad, more precisely underground in an undeveloped land where no High Class Demons controlled the territory.
And because Eiji was busy with the women in his harem, he forgot about this and only remembered when he was exercising with Seekvaira.
The Harem King prioritized his women over 'him' and thought he could deal with him later. No need to rush, right? It was not that he was not vigilant, but he was very confident in his power.
Moreover, none of his women lived in the underworld. Almost all the women in his harem lived in his house and those who lived in their respective houses had Shadow Garden members secretly protecting them in the dark.
There were also various types of barriers placed on Master-Servant tattoos and other magic. The harem protagonists out there who are not careful enough to have their heroine kidnapped by their enemies or something would be embarrassed to see how careful Eiji Seiya is.
Maybe it's because of his last name 'Seiya'? This guy is too careful!
That's why 'he' was lucky. If Eiji really came for him, he wouldn't have time to laugh like now.
"Kuhahaha!"
"The familiar red sky... and this disgusting air... It's unmistakable, this place is the underworld!"
"I'm back... I'm really back!"
If Eiji heard the dialog of this person, more precisely a man who had just come out of a cave covered with bushes.
He would laugh and ask. 'Man, did you transmigrate? What's your golden finger? Is it a system, a fairy, an old grandfather residing in a ring, a blue-haired goddess or a cheating power from a certain anime? Ah... Maybe you're a big man who was reborn? So cliché...'
"I was reborn."
Eiji: "...."
That's right. Miss System's acquaintance was now arranging for someone who was reborn to deal with him. How troublesome... I hope this person amuses me more than Bella.
"Although I don't understand why the bitch whose face I can't remember wants me to deal with the boy named Eiji Seiya as a condition for him to revive me in the trashy body of this extra devil..."
"His demonic power is too weak compared to the first generation of 72 Pillars and me before. I don't know how strong that boy is. He definitely can't compare to this great me! It's just a boy, I can kill him on the way."
He said contemptuously before feeling the demonic power inside his body.
Actually, he had already checked it when he woke up in the underground laboratory a few minutes ago before coming to the surface.
It was still disappointing.
The previous owner of the body, Zaorama Nebiros who came from one of the Extra Devil clans was actually a high-class devil. He was the former head of the Nebiros Clan before he went into seclusion to continue his research for many years, but his power was not as good as high-class devils from other clans, even from other extra devil clans!
After all, the Nebiros Clan didn't specialize in combat power to begin with. They were actually devils with a talent for research. In terms of research, they were at the forefront of other devil clans.
Still, even though it can't be resurrected in its original body. Can't that bitch choose a better body like the devils of the 72 Pillars?
Someone like himself didn't need a research talent! He rather needed a strong combat talent to begin with!
"That old man, the God of the Bible is dead, and according to the memories of this trash. Many things have changed after my death in the Great War. Looking at the latest situation of the world in his memory, it's a good opportunity to dominate the world!"
"Unfortunately my current power..."
The man looked at his hands and clenched them repeatedly. After being the pinnacle among devils for thousands of years, he did not expect that one day after he died, he would be revived into the body of his child.
Well, more like one of the billions of children he created asexually with his wife.
As the Morning Star, Lucifer. To have this level of power...
He felt humiliated.
That's right, this reborn man was the King of the Devils. One of the four Original Satans, ancestor of the Lucifer Clan and ruler of the Lucifuge Clan.
If Grayfia knew this person's situation now, she would definitely be shocked. But that's just it, she wasn't her younger brother, Euclid who worshipped the original Lucifer so much that he was willing to become his dog.
However, many other devils, especially Rizevim would have been more shocked to learn that the original Lucifer/his father had been reborn.
But leave that aside.
The original Lucifer suddenly remembered something. Or rather something else that the bitch who gave him a second chance gave him. Somehow it was hard to remember even though from memory it wasn't that long ago that they talked about the deal.
He also didn't care and wouldn't thank that woman because he was too proud to thank someone. He would just make use of what she gave him happily.
If not mistaken it was something that could help him increase his power quickly.
"System." After he said that. A blood-red transparent window with black text appeared before his eyes.
He was a little wary at first, but it seemed to be the thing he was referring to and was not dangerous at all.
Having been reborn, the original Lucifer certainly didn't want to die again before he accomplished anything.
[The Many Children Many Blessings system is at your service. I know what you want. As my name suggests, as long as you conquer many women and make them pregnant with your child. Your demon power will be enhanced and it's not impossible for you to regain your original power! Not only that, you will also be given various rewards from the other world depending on the quality of the women carrying your child!]
"...." The original Lucifer who had never read the system protagonist's novel because he died in ancient times was clearly seeing the thing called system for the first time.
Let alone the 'Many Children Many Blessings System', he didn't know what the person who named this thing was thinking.
What the fuck? Is that bitch playing tricks on him? No, wait...
If what this system said was true, then not only would he regain his original power as the King of the Devils, he could grow even stronger than that!
His aspiration to make devils dominate the world that he failed to do in his previous life would be even easier to achieve in the world.
He could surpass the strongest beings in the world he knew such as the Bible God, Infinite Dragon God, Great Red and Trihexa!
With the help of this system! He...
"Isn't that just conquering a lot of women and making them conceive my children? I am the great Lucifer... Adam's wife Lilith was even fascinated by me, that bitch willingly fell into my arms and opened her skirt for me— she became my wife and bore billions of children for me. Although many of those children were created asexually with the help of my Book of Lucifer— who do you think you're saying that to?"
The real Lucifer couldn't help but laugh while looking up at the sky. "Kuhahaha! It's going to be easy! Especially the female devils in the underworld, I'm sure many of them will gladly lift their skirts to me!"
"Let's shave first and then go to the nearest town to look for beautiful women."
He returned to the cave and cleaned up his appearance in the underground laboratory. This trash, Zaorama didn't look too old yet, he looked like a man in his thirties. Since he was a pureblood devil, he was certainly youthful and aesthetically had an appearance that could be considered handsome.
It was just that he was obsessed with his research on how to create a Super Class Devil like Sirzechs Lucifer. He rarely took care of his appearance until he had a long beard and thick mustache.
After bathing, shaving and changing his clothes. Looking in the mirror, although not as handsome as his original self, he looked more handsome than ever.
Speaking of Sirzechs who had his surname and was now one of the Four Demon Kings in the underworld.
The original Lucifer sneered when he saw this memory. That boy dared to wear his name which meant being Lucifer's heir even though he was from the Gremory Clan. He might be strong, but in his golden age. Super-Class Devils like the other three Original Satans obeyed his orders.
His own original power could not be measured by the Super Class. It was hard to measure unless he showed how strong he was.
In that era, only people like the God of the Bible were able to match him until he had to prepare billions of devils as troops to wage war against heaven and the fallen angels.
In his original plan after he won that war. He would fight with the gods of various mythologies and conquer the world.
Unfortunately, he lost the war and died. Billions of his troops also died which made the devil population reduced by 70% from the original.
He knew from Zaorama's memories, the child named Sirzechs was rumored to be as strong as the Original Satan as he was and was dubbed the Strongest Devil.
But according to the original Lucifer, Sirzechs was clearly still inferior to him. Even if that person was weaker than him, the only people worthy of inheriting his name were his original descendants and Lilith herself who was created in a normal way such as his son, Rizevim. How could that boy inherit his name?
"I have to change things in the underworld after I return. But it takes power to do that."
Of course, the original Lucifer was not stupid enough to immediately tell his return to all the devils in the underworld.
He was now still weak. Devils like Sirzechs could even step on him if he showed arrogance to make them obey him.
With the help of the system, he had to increase his power first.
"Still, it would be better if I had my Book of Lucifer and Lilith. The things that Zaorama has wanted for years, I can do with less effort if I have both of them."
More precisely devil troops of various classes. He could have mass-produced them just like he did to create his devil troops in the past if he had the Book and his cheap wife.
However, the original Lucifer remembered Lilith should have also died in the Great War. She died before him which made him sigh in exasperation.
He wasn't sad because he never loved her and only used her as his tool. It was just that now he had to rely on his own power without the help of subordinates or anything like that.
He was a little unaccustomed to it.
There's also the book, where is that thing after he dies?
Hades: "...."
The original Lucifer didn't know the book and even his wife was in the hands of the skull who was now busy creating troops with the help of his son.
...
[Pffft! Hahahaha! That bitch thinks she can defeat my host with just a reborn villain boss and her hentai system!]
Early in the morning, Miss System burst out laughing after Eiji checked what exactly happened on the original Lucifer's side with his 'Future Insight'.
Of course what he saw was the future and not what happened last night because he was busy exercising with the women who were now still passed out on his bed.
But it was enough to see a few things.
The original Lucifer who was reborn with the Many Children Many Blessings System.
Even he could not help but laugh because it reminded him of the protagonist in the novels he had read.
By the way, Eiji didn't sleep at all and the last woman who had just passed out in the 144th round in the previous orgy was Rias.
The appearance of the women in the room right now was needless to say— extremely lewd. With sweaty skin and many love marks, disheveled hair, and both of their holes still leaking white liquid.
Each of them was asleep in random and various poses on the bed.
The scene looked very erotic.
Truly a scene out of a novel with a harem protagonist, right?
[You mean hentai?]
"No, it's a beautiful harem. My dear system."
[Host, don't say something that makes me want to vomit.]
Well... This woman can't take a joke.
Even so, she just laughed at what her 'acquaintance' who she calls a bitch did. Can she honestly just tell me her name? Besides liking to laugh at people and having an unusual sense of humor. Miss System likes to pretend to be mysterious.
What chapter is this already? Cough! I mean if this is a novel written by someone out there... IF, okay? Many similar cases happened to some of the protagonists in the novels he had read in his previous life.
How long had he and Miss System been together? It was longer than the women in his harem, almost a year to be exact...
It wasn't too long but enough for normal people to share some of their little secrets.
[I'm just a system, an artificial intelligence. What nonsense were you thinking? Host, I suggest you check your rewards before hunting pokemon again.]
That's right... 'I'm just a system', there had been many times she had heard that. He didn't know, his memory was too bad.
"Pokemon? Hahaha... Miss System, I believe you mean the plot. It's important to save them from the bad guys called protagonists out there. Okay, check my reward."
Eiji said while hugging Koneko and Irina's soft bodies since they were the closest to his position. They groaned slightly feeling the movement from him, but smiled sweetly in their sleep while murmuring.
"Senpai... Meow... Give me a kitten... Meow..."
"Eiji-sama... Nnn... Give me a break... My ass is going to be ruined.... B-But if you like it that much... Do it as much as you want..."
Put Koneko aside. But Irina, are you sure you're still sleeping?
Whatever it is—
[My woman who are still sleeping in the morning are so cute~]
Miss System: "...."
My host has fallen into the depravity called women and sex! Is it too late to change my host?
Just kidding...
Miss System could only complain in her heart that her host was shameless.
But since she managed to divert the topic from her hidden identity, she would continue.
[Ding! Detected that the host has changed the plot in the "Highschool DxD" franchise]
[Successfully changed the plot of "Highschool DxD" by 74% by killing God Indra and destroying some of his minor plots in the future. You've also captured Venelana and Seekvaira. Sorry, but that's only worth 0.6% since those two didn't affect much in the original work.]
"I see. I just hope you give me something good."
[...]
[Ding! Congratulations host, you got "Zoan-Type Devil Fruit: Niu Niu no Mi"]
...
A/N: If you want to read 7 advanced chapters with a faster update frequency than the webnovel, you can read it on my patreon whose link is below:
https://www.pâtreon.com/DogLicker
Replace "â" with "a" and search in your browser.
By the way, don't forget to throw power stones and leave a review to motivate me :)
For those wondering about the historical differences in the original work. I changed some details about it to fit the plot I had in my head.