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Kiba SI - High School DxD - R18 Fanfiction

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Synopsis
When you regained your memories, your number one priority was training to survive what was coming. Of course, you'd have a lot of sex along the way.
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Chapter 1 - R18-Kiba SI cap 1

Warning: Suitable only for those over 18 years of age.

All characters are over 18 years old

Porn with a plot.

.....

Underworld

Gremory Mansion

Trotting around the mansion, a blond-haired young man ran while panting slowly. 

The young man's name was Kiba. 

Kiba was a reincarnated demon, Rias Gremory's knight to be specific. 

'A year has passed,' Kiba thought. 

A year ago, at the age of 10, Kiba was the sole survivor of the church's holy sword project and was reincarnated by Rias Gremory. 

Or at least that's what everyone believes. 

There is also Tosca, a friend of hers who was trapped inside a suspended animation barrier produced by her own Sacred Gear, which awoke at the critical moment, saving her life. 

Kiba knew this because this was not his first life. 

When he was on the verge of death and Rias revived him, memories of a past life surfaced, and thanks to that he knew that he was in an Ecchi world about to be destroyed due to an invasion from another world and that he was saved by a perverted boob lover.

His displeasure was evident when he realized he was just a secondary character, a friend of the protagonist. 

Unwilling to leave the survival of this world to Issei, Kiba took his training seriously and there hasn't been a day since he regained his memories that he hasn't trained. 

After waking up after being reincarnated by Rias, he made a deal with her to fight for her as thanks for saving his life, but if he wanted a servant he should look for someone else. 

Rias happily accepted because she wanted friends in her Nobility, so they both have a good relationship. 

Together with Akeno, who was already Rias's queen, they would meet to watch anime at night. 

'She was already an otaku at a young age,' Kiba thought, guessing that in a few years Rias would want to go live in the human world. 

'Koneko' Kiba thought of Rias's other peerage member who had recently joined and was still not opening up to others.

Because of what happened before, she feels hurt and afraid of being abandoned again. 

Kiba didn't know how to help her and tell her the truth, but he had no proof and questions would arise about how he knew all this.

Putting those thoughts aside, Kiba continued running while his body sweated profusely. 

On his wrists and ankles, he wore bracelets that weighed 1000 kilos each. 

These bracelets were swords created with his Sacred Gear, created with the ability to transform into bracelets and have an increased weight. 

But he not only wore weights on his wrists and ankles, but the vest he wore was also a creation of his Sacred Gear, which also weighed 1000 kilos. 

Since he started training, his physical training has consisted solely of running and wrestling with the weights he was wearing. 

This training is also something he hasn't told anyone about. 

Not even Okita Souji, with whom he sometimes trained, knew it. 

Knowing that a reincarnated demon didn't have many rights in demonic society, Kiba decided to keep a low profile for now. 

His magical training is also impressive. 

Together with Akeno, they studied devil magic based on imagination and human magic based on mental calculations. 

While so-called imagination magic sounded powerful, it required a strong mental image, intention, and demonic power to work. 

Furthermore, without a magic circle, the efficiency is very low. The magical energy expended was enormous compared to using a magic circle. 

As part of Rias's nobility, Kiba and Akeno were able to receive the Gremory family's magic circle. 

Human magic, on the other hand, not only needed a magic circle, but also a great deal of mental capacity to make the necessary calculations. 

Not wanting to be a one-trick pony, Kiba worked hard to learn human magic and succeeded when he came up with the idea of creating a sword that clarifies and accelerates the speed of his thoughts. 

Thanks to that, he left Akeno far behind, who had started her apprenticeship before him. 

Of course, he didn't show it and only presented himself as a bookworm who liked to read all the books he could in the Gremory mansion library. 

Compared to the devil's imagination-based magic, one might say that learning human magic was a waste of time, but Kiba didn't think so. 

After all, it is known that the Kankara formula, the technique created by Ajuka Belcebu, is a technique that requires calculations and equations to control natural phenomena. 

Kiba believed that learning human magic would greatly help his demonic magic. 

But while he is very good at demonic magic, his trump card is his Sacred Gear, sword birth. 

This Sacred Gear allowed him to create swords with different attributes and properties. 

Kiba decided these attributes and properties based on his imagination. 

Of course, the more powerful and/or complicated the swords are, the more energy it will use to create them. 

Aside from the bracelets he uses for his physical training, another sword I believe is a magic power-storage sword. 

This sword, where he keeps magical power to use in a critical moment, was currently in a mole-shaped tattoo on his back. 

Because he puts most of his demonic energy into that tattoo, those who sense Kiba's energy think he is still a low-level demon, when in fact he was already a mid-level demon 6 months ago in terms of magical power and physical strength. 

Since almost no demons train their bodies, Sairaorg being one of the few, it's easy for Kiba to gain an advantage at the start of a battle using only his body against a mid-level demon. 

Ding

A sound in his mind told him that his jogging time was over and he headed towards the mansion. 

The sound was due to a calendar-sword, created to keep track of time for Kiba and also functioning as an alarm clock.

.

.

.

Kiba's life in the Gremory mansion passed quickly, and soon the day came when Rias and her peerage moved to the city of Kuoh, a city that Rias would rule alongside Sona Sitri. 

He was now 16 years old and during the last 5 years not many important things happened, one of the few being Gasper's incorporation into the nobility of Rías. 

After 6 years since he recovered his memories, he was ready for what was to come now that he was so close to the start of the plot. 

According to what Rias told Akeno, Koneko, and Kiba, the former governor of Kuoh City had an accident, but they won't have any problems because his family made sure there wouldn't be any issues in the city. 

With the help of their parents, their father's nobility, Grayfia and some more from her brother's nobility, Rias and the others were able to move to Kuoh City without problems. 

Alongside them was also Sona Sitri, who received help from her sister, Serafall Leviathan, who, along with Rias's brother, were two of the Mous of the demon race. 

During the first few days, Rias and Sona talked and divided the task of watching over the city. 

Then Kiba, Akeno, and Koneko traveled all over the city, getting used to the place while handing out contract pamphlets to the humans they came across. 

The promotion method for low-level demons is divided into 3 parts. 

Military merits, Rating Games and contracts. 

The only method Kiba and the others have for now is to make contracts with humans in Kuoh City. 

The contracts that a demon makes with another living being, mostly humans, are based on receiving something in exchange for fulfilling a request. 

If the contractor has a certain amount of magical power, the demon receives a very small portion of it. 

The amount is minuscule, but after making countless contracts, the profit is significant. 

Of course, since the profit is minimal, the demon also asks to receive other things as payment.

Mostly money and rarely favors if the contractor has high influence. 

As presidents of a country, famous artists, and managers or owners of large companies. 

According to what Kiba knows after reading many history books in the Gremory library, demons received souls in ancient times as payment for contracts and consumed them to gain power. 

That was a quick way for demons to gain power in the past, but it came with a drawback: the corruption of the soul. 

Little by little the demon will go crazy and become very aggressive. 

Knowing the danger that a demon consuming souls would bring, the demonic government outlawed this practice. 

Kiba and the two girls finished handing out the flyers and returned to the mansion where they currently live. 

Next year they will study at Kuoh Academy and in the meantime they will spend their time training, watching over the city and making contracts. 

That same night, Kiba felt the call of one of his pamphlets and teleported to a point near the place from where he received the call from his potential contractor. 

Eager for what was to come, Kiba approached the house where the woman who was calling him was and rang the doorbell next to the door. 

Regarding contracts, the demon can choose some criteria from potential contractors so that they can use a contract pamphlet. 

In Kiba's case, they chose as their main requirement that the contractor be a woman. 

Sensing the woman approach the door and open it, Kiba smiled, remembering when he met her walking down the street. 

As a method of practicing his telepathic abilities, Kiba would review the thoughts of all the women to whom he gave a pamphlet and knew what they might ask for. 

Kiba had expectations of this contract because he remembered what this woman wanted. 

Sex

Good, pleasurable sex to brighten up your boring life. 

Ootake Nami

Ootake Nami was a 30-year-old woman who divorced her husband a few months ago after discovering he was cheating on her. 

Since then, she has been down and sad, thinking about accepting her sister's offer to move in with her. 

But what tormented Nami the most was her overwhelming desire for sex. 

Even during her marriage, sex was very infrequent, the last time being with her ex-husband 4 years ago. 

For the past few years, Nami masturbated every day longing for a cock, but she had no success. 

She had repeatedly asked her husband to have sex, but he refused, claiming he was very tired from work. 

Now he knew he had another family in another city. 

Her sister had suggested she go on dates with other men, but Nami refused because she didn't know if she could trust another man so soon. 

Furthermore, she had only ever been with her ex-husband in her life, so she lacked confidence in being with another man. 

But there was another, even more important reason in his opinion. 

His body. 

She had large breasts and a wide butt, attributes that she realized did not attract her ex-husband, who replaced her with a much thinner woman. 

Because of her lack of confidence in her body, she was embarrassed to think about being naked in front of another man.

Despite her enormous desire for sex, Nami didn't dare meet another man and was thinking of moving in with her sister. 

Until now. 

Looking at the pamphlet he held in his hand and remembering that he had received it from a very handsome young man, he read that the young man offered different services. 

While holding the pamphlet, Nami had an inexplicable urge to call him and have him fulfill her wishes. 

And so he did. 

In Nami's mind, it seemed as if she had made a phone call when in reality she only had the pamphlet in her hand.