4 King of the demons.

"Ehh... So that presence comes from here." Naruto said quietly.

Kurama who is inside Naruto said in a happy voice, "His presence is very much like that which is called the King of the demons.

"It seems that after that war, the demon world experienced a civil war." Whispered Naruto as he was looking at the place before him. "I heard they killed their king in that war. How stupid!"

Naruto spent a week in the human world and took the city of Kuoh under his command. In the early days, many races had left the human world and gone to their own worlds while others were exterminated by him as they used the humans as food. Only a small minority were living in harmony with the human race and they did not want any problems with the new owner of the territory.

He was not a despicable being and he let these supernatural beings live normally among humans as long as they did not do anything strange to the inhabitants of the city. Naruto's only problem was that this city was full of supernatural beings and they were not lowly like the others.

The Kuoh Academy was just the tip of the iceberg and one of these beings was in this school. The Ishiyama School looks like a high school in a nutshell with broken windows, fences and wooden doors. Graffiti is almost everywhere in the school.

"What an ugly place." Said Shukaku with von irritating.

Naruto shrugs and says, "Usa and Ritsu, they said this school is full of criminals and is one of the worst schools in the city. Naruto wears a white T-shirt with a black striped V-neck and black trousers that come with brown shoes.

"Let's go inside." Kurama asks in an ambiguous voice.

"Nah." Naruto replied with a scowl. "Let's wait for them to come out and we'll watch from afar. If it's dangerous for the human world, we'll get rid of it.

"Whatever you say." Said the two beasts in Naruto's mind.

The minutes passed while Naruto stood waiting in a nearby park. He was watching several children playing with each other. Naruto's lips rose with a sweet smile.

Flashback

On a clear moonlit night and the stars were shining in the night sky In the courtyard of a blue-roofed house A young woman appeared to be a teenage girl of about 14 who had a beauty that only appeared in paintings. She had a serene face with a graceful posture, tall and agile. Dark blue hair up to her waist, bright blue eyes as well as some whiskers marks on her cheeks but with the difference that there are only two of them.

In the hand of the beautiful young woman a chakra ball with four giant blades. The wind gently moves the tight black dress. The girl raised her nose arrogantly, but her eyes were glowing with excitement.

"Otou-sama, it only took me a week." the young girl said with much emotion.

Naruto watched that tender, delicate hand of his daughter, who was using one of his techniques. Naruto studied it for a moment, then seeing his daughter's happy smile he thought of that beautiful fairy who looks so much like his wife.

"Huh... You lack more control in your chakra." Naruto smiled at his beloved daughter.

"You... Himawari never expected that answer from his father. He had taken so much trouble to learn this technique that even his elder brother took a month to master it. The one-tailed Jinchuriki diverts his gaze from his father with discomfort as his cheeks swell.

Seeing her wince, with her cheeks swollen to the point of bursting, Naruto's expression quickly turned to a smile, as her lips curled slightly. Looking into the already visible stream, he said, "All right... I'll keep my words. What do you want?"

Himawari turned his head to see his father and opened his mouth...

"Sir...!

"Sir...!

End of Flashback.

Naruto gets out of his head when he hears a girl's voice. He shakes his head and looks at the two girls in front of him with gentle eyes.

The first is a fairly young girl with light brown hair and thin pigtails, and at the beginning of the pigtails there are red ribbons. She also has brown eyes. The second is a pretty girl with shoulder-length black hair who is tied into two pigtails with smiling star pins and brown eyes.

"What do you want?" Naruto asks gently, looking at the girl with brown hair and tears in her eyes.

"This... I..." The two girls were in a panic.

Naruto raised an eyebrow and pulled out a few sweets from his pockets: "Hey, you want some candy?"

"No!"

The two girls screamed and scared Naruto a little.

"I'm sorry I yelled at you." The two girls apologize and Naruto doesn't know that they want these two girls.

"It's okay... Then why are they calling me?" Naruto asks again in a gentle voice.

The two girls look at each other and then point at a tree in the park.

Naruto looked up and looked at the tree with exquisite eyes. On one branch of the huge tree was a pure white cat.

"Ohh... They want me to help them down the tree." He pointed to Naruto and looked at the two girls nodding their heads.

Naruto sighed wearily and got up from his chair and walked to the tree followed by the two little girls. Naruto started looking around to see if anyone was looking at him and realized that no one was there.

"Good." Naruto said quietly and disappeared from the sight of the two girls.

"Ah?"... What happened?" The two girls wondered when she heard a little squeal behind her.

Turning their heads, they saw the blond man with his cat in his hand. Their mouths were open and she didn't understand what had happened.

"Um... Here's your cat." said Naruto, handing over the two girls in surprise. "We see each other." Naruto said goodbye with a sweet smile.

"Woot... that was amazing!" The two little girls shouted in disbelief, but at the same time impressed. Naruto went back to school and realized that he no longer felt the presence of the demon in the place. Naruto understood the situation abruptly and looked at the school with coldness. It escaped me, ah, what a nuisance more work to do! Naruto looked at the sky with boredom.

"Use the Senjutsu, I don't think that demon would go that far. Kurama suggested to Naruto.

Naruto nodded and closed his eyes, Naruto's form as strong as a mountain, with two legs firmly anchored in the concrete of the city. His whole body remained motionless, keeping its balance.

An aura of tranquility filled the surroundings of Naruto.

When he opened his eyes, he had a yellow iris with a toad's pupil, plus red pigmentation around the eyes.

"I found it." Naruto said, disappearing from the scene at once.

Sitting on a sofa talking to a young man with brown hair, there was an attractive woman, who has blond hair covering one side of her face and usually wears a bow, her eyes are green and she has a large bust. Her clothes are mostly the elegant black wet nurse's clothes that resemble the Gothic Lolita fashion.

She gets up from the sofa in a hurry, scaring the presents.

"Shit! That was fast!" The beautiful woman screams and her body starts to shake.

"Hilda-Chan... why is she screaming?" asks a middle-aged woman in a gray shirt and a purple apron.

Hilda didn't hear the woman's question and her quickly open the door.

The family members didn't understand Hilda's behavior and went after her. When they arrived they saw Hilda bending over a man with blond hair.

Behind Hilda, the young man with brown hair and dark eyes He felt an overwhelming pressure that made his forehead sweat.In the young man's arms was a normal-looking baby with green hair, a pacifier, and he was naked.

"Nar... Naruto-sama... What brings you to this humble house?" asks the woman in a frightened voice.

"Do you know me?"Naruto asked in a calm voice and his eyes looked at the green-haired baby.

"The whole underworld knows you."

"Uhm... well it doesn't matter, I'm just here, it's to find out if this young man and the baby is a danger to the city or the human world." Naruto said relaxed tone.

"Danger? Human world?" The family wondered while Hilda and the young man looked at each other not knowing what to answer.

Naruto realized this and said, "They haven't told her yet, she and the baby are..."

The woman interrupted Naruto and said, "We can talk inside. She's fine with Naruto-sama."

In the young man's arms was a normal-looking baby with green hair, a pacifier, and he was naked.

"Nar... Naruto-sama... What brings you to this humble house?" asks the woman in a frightened voice.

"Do you know me?"Naruto asked in a calm voice and his eyes looked at the green-haired baby.

"The whole underworld knows you."

"Uhm... well it doesn't matter, I'm just here, it's to find out if this young man and the baby is a danger to the city or the human world." Naruto said relaxed tone.

"Danger? Human world?" The family wondered while Hilda and the young man looked at each other not knowing what to answer.

Naruto realized this and said, "They haven't told her yet, she and the baby are..."

The woman interrupted Naruto and said, "We can talk inside. She's fine with Naruto-sama."

Naruto shrugs and enters the house. The house was on two floors, its walls were painted yellow and there were dozens of photographs of the family on the walls. Naruto sat on the living room couch while the family took the same pictures. The parents had many questions for their son and daughter-in-law. But seeing Hilda's frightened face and their son's cold sweat, they were silent.

"What's the baby's name?" Naruto asks, looking at the baby.

"Please excuse my rudeness." Says the beautiful woman. "I'm a demon servant serving that baby. My name is Hildagarde."

"Demon!?" The parents wondered.

Hilda took the baby in her arm and looked at Naruto: "And this individual is the future King of our Race, the demons. His name is Kaiser De Emperana Beelzebub IV."

Uncomfortable silence.

Naruto stared at the woman and child with cold eyes.

"Wait... Are you a demon?" A loud voice echoed in the room. Naruto looked up and saw a beautiful woman who had short brown hair, wore an orange suit, had large breasts and wore short blue jeans.

The girl thought the pretty young man was Hilda's brother, since they had blond hair. But she realized that her sister-in-law was shaking intensely when she saw the cute boy. She's a demon? Why the hidden from the family? Besides her younger brother wasn't impressed with Hilde's word, he knew it all along

"Who are you?" The young man with brown hair asks.

"I'm sorry, I haven't represented myself yet. My name is Naruto Uzumaki." Naruto introduced himself in a soft as a breeze tone. "As I said before, I'm here to see if those two were a danger to my city."

"Your city?" The old woman asks.

Naruto nods his head and says, "The city of Kuoh is under my power right now."

He stopped looking at the old woman and looked at Hilda with a scowl. "From what I hear, the last demon king died in the civil war several centuries ago."

"My question is... Why is your child still a baby? Shouldn't he be an adult by now?" Naruto asks in a cold voice. In the last few days I had researched the events that had occurred in the supernatural world. After the last great war, he did not get involved in the civil war in the underworld, let alone take an interest in it. He met the last demon king on one of his trips, but they never interacted with each other.

A few years after the great war and civil war, the demon clans nearly became extinct and used humans as tools of reproduction, that was shortly after I began my isolation in the wilderness.

He found it strange that the successor to the last demon king was still a baby after several centuries.

"Our king somehow used forbidden magic that sent his two sons into another timeline." Hilda replied with a blank face.

"Space-time magic. Ehh, how interesting." Naruto thought, looking at the hand of the young brown-haired man.

"And what did the new Satan say about the children?" Naruto more or less knew the social structure of the new underworld, ruled by four new satans.

"They don't know!" exclaimed Hilda in a frightened voice. "If they did, I would not hesitate to kill the descendants of our Lord. We have been waiting for the new demon king, but none of the Satan dare take the throne."

"You are telling me that your clan will use..."

"No." Hilda interrupted Naruto.

"Our Clan has always served the demon King and we will bet all our resources on him to be the new ruler of the demons." The woman's voice echoed throughout the house.

"Without a demon king to rule the underworld. Our race will perish in the course of time. The demons of pure class are diminishing in number and many bloodlines disappeared in the last war. Only a demon king can create pure class demons and true bloodlines.

Naruto was stunned as he looked at Hilda. I thought that demons used humans to increase their numbers, but they don't. Hilda's eyes were full of sincerity. The words she said were not lies.

"Naruto, let's support the child to be the king of the demons." Kurama's sudden voice came to her mind.

"Let's use this demon as puppets to protect this world and control the underworld from the shadow." Shukaku said with a laugh.

"Mmm..." Naruto had a calm look in his eyes as he watched each member of the family.

The family did not dare make a single sound, for fear of interrupting Naruto's thoughts.

"Although I have many questions for you, I'll let it go this time." Naruto got up from the sofa and looked at Hilda and then at the young man. "If you have a problem with the stamp on your palm, you can look me up."

"How did you know?" The young man thought helplessly.

As he pondered, Naruto handed Hilda a small piece of paper.

"This is the address where I live. I hope we'll get along." Naruto said with a bright smile.

"You..."

"Don't worry, as long as they don't do anything strange in town everything will be fine." Naruto leaves the house leaving a dead silence inside the house.

"Oga, Hilda... You can explain to me what just happened." Demanded the old woman.

"Yes." Says Hilda with a blank face.

Naruto was walking the quiet streets of Kuoh while chewing a malt candy "I wonder if those ladies knew of the existence of that baby in this town."

"Who knows?" Said Kurama and Shukaku.

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