Underworld, Maou Territory.
As the name suggests, this is the territory belonging to the Demon King.
In the territory of Devil, almost in the center, there is a territory that neither belongs to any noble nor to any Pure-blood Devil family. Instead, it is classified under the name of the Demon King and belongs directly to the Demon King.
At this time, in the sky above Maou Territory, a Azure Sky Dragon flew under the night sky, flying towards a city.
"You placed those sisters in Lucifer Territory?"
Above Azure Sky Dragon, Leo and Ravel Phenex were sitting side by side, talking to the giant dragon below them.
"That's right." Tiamat's voice came from Azure Sky Dragon's mouth, saying, "After all, they are not the same monsters as me, and they are still young. It would be a bit uncomfortable if they had been living in the forest and leading a boring life."
"So, I placed the sisters in a mansion in Lucifer Territory and let them live an ordinary life there."
Lucifer Territory used to be the city where Old Maou Lucifer lived, which was the territory of Original Maou Lucifer.
It was also the capital of Underworld, but after Old Satan Faction completely withdrew from the ruling circle of Devil world, the capital of Devil world moved to Lilith, and Lucifer Territory became the old capital, no longer the center of Devil world.
But even in the old capital, Lucifer Territory still enjoys great popularity in Underworld as the former Demon King City. The current Devil world has not abandoned it, but continues to develop it. As for Lucifer Territory, it has now become a prosperous city second only to the new capital Lilith. There are also many administrative agencies inside, attracting Devil people from all over Underworld.
The Demon King and senior officials from the Devil world will come here from time to time and work in Lucifer Territory. Many large-scale events will also be held in Lucifer Territory, so the prosperity of Lucifer Territory is no less than that of the new capital Lilith.
Tiamat and Devil have a close relationship in the world. Although few people know their position, as the recognized ally of the current demon king Beelzebub and the underground referee of Rating Game, it is extremely easy for her to own a mansion in the old capital Lucifer Territory.
However, Tiamat herself does not like living in a bustling city, so she has always lived in the depths of Familiar Forest. If it were not for the mental health of the sisters, she would not even think of placing a mansion in the city.
Now, she is taking Leo and Ravel Phenex to the mansion Lucifer Territory in the old capital.
"What is the origin of those two sisters? Lord Tiamat?"
Ravel Phenex couldn't hold back his curiosity and asked this question.
From what Leo and Tiamat said, the twin sisters who might become their companions seemed to be something special.
Tiamat also once said that the other party is neither a human being nor Devil, nor even a monster----
So what exactly will it be?
Not to mention Ravel Phenex, even Leo has been curious about it.
But now, Tiamat has no intention of hiding it anymore.
"Have you heard of the Oni Clan?"
Tiamat's words stunned both Leo and Ravel Phenex.
"Oni Clan?" Ravel Phenex said in surprise, "Are you referring to the Yokai in folklore?"
Yes, the ghosts Tiamat mentioned are not ghosts, resentful spirits, evil spirits, etc., but a type of folk belief Yokai.
It often appears in Island Country folk tales and local beliefs. It is often described as a tenacious giant with horns on its head, red or blue skin, and holding Kanabo in its hand. It is a ferocious monster that can eat people and drink alcohol, with disheveled hair and a bare upper body.
In this world, Yokai, like Devil, angels and Fallen Angel, are all real creatures, so as a kind of Yokai, Oni Clan also exists.
However, unlike what was mentioned in the legend, the Oni Clan in this world is not a disheveled, green-faced, fanged monster, but a humanoid creature that usually looks the same as a human.
They are born with strong bodies. Even a three-year-old child can easily wield a mace weighing hundreds of kilograms to kill enemies on the battlefield. Although they do not eat people or drink alcohol, most of them have a ferocious temperament. Especially when they are immersed in battle, their heads will grow glowing horns. By then, their strength will increase exponentially and their temperament will become more ferocious. They are the most warlike race second only to dragons.
They have appeared many times in history. Not only did they use humans as slaves, but they also caused trouble to the world with many Yokais like Naki Nightwalkers. Therefore, they had many conflicts with humans and were killed by powerful heroes among humans.
For example, the famous ghosts of Mount Ooe, Shuten-doji and Ibaraki-doji, were killed by Four Heavenly Kings of Raikou. This is a very famous anecdote in human folklore.
Therefore, Oni Clan is a very powerful fighting race. Although it is not as terrifying as Dragon Species, which is recognized as the strongest race, it is also one of the strongest races among Yokai. In terms of combat power, it is even inferior to Cat Yokai, who can use magic.
But----
"Oni Clan, isn't it already exterminated?"
Ravel Phenex said this.
Leo also searched the memories in his mind and found the history that he had read in books.
It is said that because Oni Clan is too warlike, the population has been gradually decreasing as time goes by. In the modern era, it has almost become a rare existence, with only one or two scattered villages still living in seclusion in the world.
Ten years ago, a village that was considered the last habitat of the Oni Clan seemed to have been destroyed by a group of stray cultists. All the ghosts in the village were massacred, and no one survived.
Therefore, in people's common understanding, Oni Clan was completely extinct at that time and no longer existed.
Tiamat's voice came to the ears of Leo and Ravel Phenex.
"Oni Clan is indeed on the verge of extinction, but ten years ago I happened to pass by the Oni Village that was massacred, and rescued a pair of children who fought to the end from the hands of stray cultists."
Hearing this, Leo and Ravel Phenex still don't know what's going on?
"In other words, the pair of sisters you want to give to Lord Leo are the pair of the Oni Clan children you saved?"
Ravel Phenex's eyes lit up.
The survivors of the Oni Clan are truly rare family talents.
Oni Clan is born with a strong body. In terms of physical strength, it can be said to be second only to Dragon Race. Especially after activating his double horns, he can crack mountains and rocks and move mountains and seas with a single blow. He is definitely the best combatant.
Even if the people of the Oni Clan are underage, once they activate their horns, they can compete with High-Class Devil. Even if the adult ghosts do not activate their horns, they are almost as good as High-Class Devil. After activating their horns, they are said to be invincible, which is why they are famous.
Nowadays, Oni Clan can almost be said to be extinct. These two sisters are likely to be the last survivors. If they can be brought under his command, it will definitely be of great help to the growth of Eligos Peerage.
"The premise is that your master can successfully reincarnate them." Tiamat poured a basin of cold water and said, "I'm not afraid to tell you the truth, those two sisters are extremely special existences even among the strong Oni Clan."
"Because they are twins, they have only carried one horn since birth. They are very rare one-horned ghosts."
"Horns are the source of the Oni Clan's power, and Oni Clan is also proud to have two horns. Therefore, the Oni Clan twins who were born with only one horn are often treated as garbage and are almost impossible to survive."
"However, the sisters survived and fought to the end as children during the genocide ten years ago."
These words are enough to prove how special the Oni Clan sisters are.
And what Tiamat said next also confirmed this.
"My sister is extremely gifted and extremely talented. She is a genius that Oni Clan only encounters once in a hundred years. She is already the strongest being in the Oni Clan when she was less than ten years old. She is highly anticipated and praised by her parents and clan members."
"The younger sister's talents are far inferior to those of the elder sister, but she has the characteristic that once the horn on her head is activated, she will enter a state of complete rage and her strength will increase greatly. When she enters this state, even in the Oni Clan, only her elder sister can stop her, and she is feared by the tribe."
"These two sisters are called "One-Horned Oni God" by the tribe. No matter which one, there is extremely terrifying power hidden in the body."
-"One-Horned Oni God".
Not to mention anything else, just being given such a title shows how powerful and special these sisters are.
"No wonder there are so many Devils but there is no way to reincarnate them into Devil----"
Ravel Phenex also muttered in a low voice.
Just listening to it like this, Ravel Phenex can feel how difficult this is.
It would be fine if there was only one. One Mutation Piece should be able to solve the problem. The problem is that both sisters need to accept it, which will become a very difficult thing.
"To be honest, if you weren't a very special being yourself, I wouldn't expect you to accept those sisters."
Tiamat said so.
"Because your Mutation Trait and your Evil Piece both have the characteristics of Mutation Piece, right?
In this way, perhaps Leo will be the only one who can meet the reincarnation conditions of the sisters.
"I hope you can succeed, so that the sisters can have their own place."
Tiamat who said this has already started to land.
On the ground in front of her, a bustling city has appeared.
Lucifer Territory, suburbs.
In this relatively remote rural area, there is a luxurious mansion.
This mansion is very mysterious. It is said that no one knows who its owner is. Only a pair of maids occasionally go out to the city for shopping. Other than that, no one else is seen. This conspicuous mansion has generated many rumors in the city.
Some people say that there is an ancient Devil living in that mansion. As long as you can get his approval, you can get his inheritance and become famous in the Devil world.
Some people say that there is an unknown treasure hidden in that mansion, which contains huge wealth, enough to buy an entire city.
Some people say that there is a terrible monster sealed in that mansion. If you break in casually, it is very likely that the monster's seal will be released and harm Underworld.
Some people also say that there is actually a powerful weapon sleeping in that mansion. If you get that weapon, you can dominate the entire Underworld and become the devil.
Due to various rumors, many Devil have tried to break into it over the years, but in the end they were either beaten out by two maids, or simply disappeared from the world and never came out of the mansion again.
Over time, this mansion has become a forbidden place that countless Devils covet and fear, and no one around us dares to break in casually.
But today, someone visited this mansion.
"We're here."
Tiamat has turned into a human form, landed from mid-air together with Leo and Ravel Phenex, and arrived at the gate of the mansion.
"Click----"
Almost at the same time, the door of the mansion suddenly opened, allowing two figures to slowly walk out.
They were a pair of girls who looked exactly the same, even their heights were exactly the same, and their body shapes were about the same size, as if they were carved from the same mold.
The girl is wearing the same outfit. It is a maid outfit with a black tone, exposing her slender shoulders, and a short skirt, which can clearly show the curves of the body and give people a somewhat sensational feeling.
The two girls were wearing identical maid outfits and white hats on their heads. With their identical looks, people who didn't know might have thought that there was a mirror between them, reflecting the same person.
Of course, there are still some differences between the two girls.
The girl on the left has big pink eyes and short pink neck-length hair. The bangs on her forehead cover her left eye. She has a slender figure and the ups and downs of her body are not obvious.
The girl on the right has big blue eyes and short blue neck-length hair. The bangs on her forehead cover her right eye. She is the same height as the former and has a similar body shape, but is plumper than the former.
Anyone with a discerning eye can tell that these are a pair of girls who are twin sisters.
They seemed to have sensed the arrival of Tiamat. As they went out to greet him, they bowed respectfully to everyone like real maids.
"Welcome back, Master Tiamat."
"Welcome back, Master Tiamat."
Even the voices of the two sisters are very similar, and their movements are regular and neat. It is impossible to tell that they are belligerent Oni Clan.
"I'm back, Ram, Rem."
Tiamat's cold temperament seemed to have dissipated a lot after seeing the twin sisters, and he nodded towards them.
Behind Tiamat, Ravel Phenex was looking at the twin sisters seriously.
But Leo narrowed his eyes and sighed secretly in his heart.
"It's really them----"
After hearing Tiamat's description of the two sisters, he had already guessed that these were probably characters he knew well.
The result was as expected.
"This is the last descendant of the Oni Clan. The one on the left is the elder sister, named Ram, and the one on the right is the younger sister, named Rem."
Tiamat said to Leo.
"Next, it depends on your ability."