Meeting Belial Family

"Lord Sirzech, there is a request personally from Diehauser Belial"

A Silver-haired beautiful young maid entered the office of one of the Devil Kings, Sirzech, who was currently working on documents and reports related to the Naberius Family incident,

"Oh? Did not think he would send one since he found his son after all"

When Sirzech opened the letter reading it, his face slowly began to cramp up before sighing,

"What's wrong? Did he do something again?"

"No, he requested for Guardianship over the Nekomata girl because his son and the girl are quite attached to one another"

Sirzech felt a bit frustrated that he lost a perfect peerage candidate for his daughter, however, as someone who loves his sister he could understand the sentiments of the little nekomata and did not want to separate her from her big brother just like he does not want to be separated from his little sister.

"But wasn't the plan to---"

"No, the boy and girl do know each other. Okita's report is also attached. Although I will have to find another potential peerage member for my sister as a gift, like a big brother I feel this is the right thing to do. Process the guardianship for the girl"

Sirzech smile became brighter at the thought he has done something worthwhile as a fellow big brother while handing over the letter for Grayfia who was his Wife, Queen and Personal Maid to process the necessary documents since he was busy with other things.

Grayfia was stunned for a while seeing the warm smile on her husband's face, she saw many kinds of a smile on his face but today was truly fascinating to the point that she could not help but smile happily as he infected her.

'Wonder if I should ask Beowulf if he knows of someone... Or perhaps Enku' Sirzech thought to himself trying to figure out who to ask to find perfect candidates for his little sister's peerage.

>\/<

It has been a week that Masaru and Shirone stayed at the hospital recuperating till they recovered enough for them to be finally released, although Masaru did not openly thank his father but he felt grateful to him. With things resolved in the background, Shirone was now under the guardianship of the Belial Family under the premise that she would become a peerage member of Masaru's peerage.

The reason for the additional condition Diehauser added was because some old devils came calling for her execution due to her sister's crime, after talking with Shirone alone Diehauser felt relieved when the little girl agreed without any hesitations.

Not to mention they had to stay longer at the hospital due to the fact during the tests Masaru undergone at the hospital to check his conditions, they realized his bloodline was pure devil despite having a human mother which should not even be theoretically possible.

The aftereffects of the experiments caused Masaru's physique to undergo a sort of mutation that not only made his devil blood pure but also gave him greater magical potential growth than average high-class devils and his magic reserves was enormous. There were several seals placed on his magical reserves in order to grant him time to train his body in order to be able to host such a great amount of magical powers.

It was a blessing that he was identified as the son of Diehauser Belial or he might have been taken away somewhere by a group of lunatics who wanted to experiment on him again. It was also during this period of time that allowed Masaru to became able to sense and summon out his Sacred Gear which was a Grimoire he named Singing Spellbook.

Although he was not certain that it was a sacred gear, it was the only thing he could think of considering the fact he reincarnated in the world of DxD. The good thing about this sacred gear is the fact it could act as a medium for him to use magic as well as memory storage where he could record spells not yet recorded.

He was quite surprised to find the number of spells within the grimoire, he did not experiment actively with this book since he did not want to announce its existence to the world just yet. From what he could tell intuitively was that his current self could only handle spells and magic of the basic level of this grimoire, and the grimoire would only manifest for three hours before it will return to his body.

He was not certain, but somehow the doctors managed to find a sacred gear within his soul and wanted to drag him back for more tests in hopes to research a way for pureblood devils to gain sacred gears naturally. From what the doctors said he had a peculiarly sacred gear that should be similar to that of Boosted gear, to this Masaru felt relieved that they did not discover the book.

However, he felt conflicted that he could not sense this "other" sacred gear. Perhaps the book was protecting itself by creating a fake result for those who test him not to discover it. Once again it was thanks to his father's identity that the doctors reluctantly released him after a week, or their families might have paid a heavy price for their greed.

Presently, he is quite near the Manor where the Belial Family Household is at.

"These are the lands of the Belial Family, in the past, we did have financial difficulties which was one of the reasons I could not see you and your mother. But with things stabilized I was able to search for you full time with my peerage" Diehauser said with a sad smile, he was still hung up that he could not save Masaru's mother as well.

"Wow, I prefer this natural state compared to other regions where there are too many buildings" Masaru said while trying to divert the topic as he could understand his father's sadness, it's not like he did not love his mother but he could not remember much after all. Not to mention his situation was simply bizarre.

Looking outside quite enjoying the sight of the underworld, it is truly different compared to the Earth he once grew up in, but now he was granted a second life along with the chance to travel around. Just thinking of it makes him excited of all the things he could do.

But those plans came with a price that he needed to train as there was currently no peace between the three factions just yet, so until the peace talks happens he will have to undergo training with his father and when he is 10 years old he can finally receive his Evil Pieces all for the sake of surviving in this world.

When he heard that he became a pureblood by pure luck because of the experiment turning him into a potential Super Devil in the future, he rejoiced thinking he could put up a decent team which increases his chances of surviving in this world.

"I am glad you like it, we also prefer to keep most of our lands similar to farms provided a staple food for the devil race as well as services that require the Worthless ability" Diehauser explained,

"Does father think I can also use Worthless?" Masaru asks his father in hopes of being able to use this ability,

Masaru was quite interested in this ability after he heard from his father, as long as he understood what the thing is composed of he could simply deem it worthless which is similar to a disintegration or alteration magic, with his Sacred gear he has a chance to learning a scanning type of magic that could work like wonders together with this ability,

"You have the attribute, so you should be able to but don't use unless I am around okay? That power is dangerous if it goes out of control"

"Yes Father"

Shirone was currently sitting quietly next to Masaru, the current surroundings were truly comfortable for her due to her racial abilities: Senjutsu. During the week she stayed with Masaru, she learnt the truth behind her sister's actions and why Kuroka never told her. She gained motivation to become stronger together with Masaru and gained enough achievements so she could change her sister's fate with the Devils, this was a plan she and Masaru both spoke about.

But her other main reason was she needed a reason to stay with Masaru in a way they would never separate and Masaru's Father Diehauser gave it to her, with everything set she felt more alive compared to the hell she went through.

"Uncle Diehauser, will the family accept me?"

Because of the rumours of her sister, Shirone knew that people were avoiding her in fear that she might rampage. Masaru told her not to mind it as it was normal for the weak to fear the strong, it will slowly fix itself but she could not help but feel nervous that they were now going to meet Masaru's family.

"Don't worry, everything will be fine"

'Sigh... Just hope that Sister of mine does not do anything crazy'

Diehauser could only smile wryly at this little girl he came to know this past week, he felt relieved that his son has someone like her at his side during all this time and also agreed to be on the lookout for the elder sister to help.

"No need to worry Shirone, you're my family are you not?"

"I am!"

Shirone pouted feeling that Masaru was purposely teasing her, but she could feel much calmer than before. Masaru smiled at Shirone's adorable pouting act, he caresses her head causing her to unconsciously purr with her pleasant face. The relationship between the two grew even stronger ever since the incident and Masaru could only thank the mysterious forces that brought his current circumstances.

>\/<

"We are here"

Diehauser spoke suddenly causing both Masaru and Shirone to stiffen a bit as both were nervous to meet their new family, one of the butlers that came to welcome them opened the door allowing Diehauser to walk out first.

"Welcome Home Diehauser, it's good to see you're safe and sound"

a Lady who had similar hair as Diehauser came walking over fast and embraced her son lovingly, while a man who had a similar face as Diehauser came over while resting his hand on Diehauser's shoulder

"It's good to see you're back"

"I'm back Father, Mother. I would like for you to meet your Grandson. Masaru come here"

Masaru came forward from behind his father, he clumsily bowed towards his grandparents

"Uh-- My name is Masaru Belial, it's a pleasure to meet you grandmother and grandfather --- BUWA!"

Before he could finish his introduction Calfa Belial, Diehauser's mother hugged Masaru tightly while rubbing her cheeks against Masaru's

"Such an adorable grandson!!! Good Job in finding him, I will make those bastards pay for kidnapping this treasure from me!"

An Illusionary fire burnt around Calfa's body as she ignited her fighting spirit to kick some asses.

"Huh!? Why didn't he call me out first but instead for my wife"

Dominic who is the Lord of the Belial Family, as well as the father of Diehauser, felt disheartened at the fact Masaru called out his Grandmother first unlike his father, Calfa who heard this snorted

"Of course he would greet me first, you're grandmother's grandson aren't you?"

Masaru nodded without any hesitation as he knew in any family gaining the favour of the grandmother would lead to victory,

"You--- I will not give my grandson to you!"

The two grandparents were now arguing with one another but the servants could only smile warmly at this family who underwent multiple hardships and it was thanks to Diehauser than most of it was finally brought back together.

While the two were arguing another young lady who had a similar look to Calfa Belial appeared and snatched Masaru from her arms hugging him, but she did not stop and even went to snatch Shirone who was too stunned to even realize what situation she was in.

"So cute!!!! I have such a Cute Nephew and he even has such an adorable fiancé"

Masaru and Shirone who heard this both blushed, this made the lady become even more excited to the point she no longer behaved like a noble lady but instead a young maiden that went Kyaa Kyaa.

"Cleria..."

Diehauser sighed at his sister who flew off to another realm hugging his son, Masaru and Shirone. Even Calfa realized there was yet another visitor and immediate registered 'Fiancé' Cleria mention but she still fumed with anger that her grandson was snatched

"Cleria, since when do you grab things from me without introducing yourself?"

"But you did not introduce yourself either"

Before the two ladies were about to have their daily round of talks Dominic came between them,

"Well we are outside so let's go inside first"

When the ladies heard this they reluctantly agreed and everyone went into the Manor, Masaru was once again introduced to his new family members including his Aunt Cleria Belial.

They asked Diehauser questions and he began to tell him most of the experiences Masaru told him about when he was kidnapped. If it was not for the fact the Belial Family's current standing has only recently improved even better then they might have gone and caused another round of chaos, the family was smaller compared to others but they loved and cared for each other more than ever.

This was proven when Calfa told her husband that there was no need for a tutor for noble etiquette lessons as she will teach him and Shirone herself, they already knew Diehauser will be training him and Shirone personally. His Bishop Circe & Julia will be training Masaru in Magic because of his sacred gear while they will look for a Senjutsu expert who can train Shirone which will most likely be a yokai.

"To think the child's education would be arranged in a single day, this would not have happened in the past"

Dominic looked dazed at the window thinking about the past, Calfa who knew of this could only nod as a tear form at the corner of her eyes

"From now on we will allow our future generation to have a better life..."

Diehauser and Cleria both knew about it as well and felt happy, Masaru however never knew his father had monsters in his peerage. Each member was truly unbelievably Amazing and their history was even more so.

>\/<

"Come, hit me harder!"

Diehauser was currently sparring against Masaru, although it was early according to the grandparents who wanted to doted a bit more on him. Diehauser was strict saying that training was supposed to happen two years ago but luckily Masaru trained in Senjutsu during that period and the experiment that transformed his body which Diehauser wants to exploit all that potential and push his son's strength even higher.

But suddenly a white flash went towards Diehauser attacking him with several punches and kicks which he blocked some he could not dodge while dodging the rest, it was Shirone in her Neko-mode, she was fighting against Diehauser.

"Not bad Shirone, you truly have a talent for close combat"

Diehauser complimented her before kicking her abdomen to send her away a few meters while struggling to stand up a strong fighting spirit still reflected in her eyes.

"In order not to be a burden to Big brother I will get stronger"

Masaru stood next to her but when he heard the corny line he could not help but feel happy.

"Let's do this!"

Shirone nodded at Masaru before the two of them blast off towards Diehauser attacking him together, this time Diehauser was having a slightly difficult time compared to his easy-going time because the synchronized teamwork between Shirone and Masaru who trained together under the tutelage of Kuroka was now displayed to Diehauser.

'Individually they have flaws but when together these two cover each other's flaw as if it was an instinct, how amazing'

After an exchange of punches and kicks, Masaru and Shirone were sent crashing into the ground once again.

"Haah ---- Haaah"

Masaru was gasping for breathing while looking at his father with scorn for being a spartan trainer, look of a father was gone and was completely replaced by that of an instructor.

"If you're not coming then I will"

Diehauser tap the ground lightly with his foot sprinting towards Masaru who flinched, Diehauser raised his fist to attack Masaru's chest but Masaru himself unconsciously sidestepped while infusing his Ki within his body to give him a short burst of explosive strength.

"Not bad... Guess we can end it with this for today's training"

Diehauser smiled at Masaru and Shirone who collapsed on the ground from exhaustion, it has been ten hours they have been sparring endlessly so he could test how long his son can last while taking beatings but he was even more surprised at the potential of the Nekomata which made him even more glad he convinced her to become part of his son's future peerage.

While he was still thinking the back of his head was smacked by a woman who wore a white robe was running past him, she was Julia, his bishop.

"Geez Diehauser! Why are you so hard on Masaru!"

Julia puffed her cheeks pouting at Diehauser while healing Masaru who was still laying on the ground, Diehauser could only smile wryly thinking after his peerage met with Masaru they became a bit more lively instead of their serious side.

"Big sis Julia"

Masaru muttered softly causing Julia's face to flush up with happiness for having such an adorable little brother, soon that happiness faded into slight anger as she glared at Diehauser, but Diehauser himself looked at the sly smirk on his son's face who succeeded in his revenge could only sigh as he prepared himself for a scolding session.

While Julia was scolding Diehauser for his spartan attitude, Masaru was being dragged by another beautiful lady who wore a witch-like outfit.

"Masaru, it's time for your magic training"

Her name was Circe, she was the other Bishop of his father's team. Since it was a good excuse to escape from here he followed her to a more secluded area, Circe turned around looking at him

"How has your magic progressed without the need of your Sacred Gear?"

"It's difficult, right now I am more familiar in moulding and manipulating my Demonic energy because it uses images as a medium. But using magic based on calculations is a bit tough"

Masaru thought about his magic training because it was still early in his magic training this result already exceeded Circe's expectations to which she remembered about this boy's circumstances.

"Well, most people consider it simple... The human magicians magic which you are struggling with which uses calculation, runes, the magic language which is mostly only to understand if he does this and adds this you will create this. In other words, where Demonic Magic can skip the 'process' that creates the 'Result' spell, the human magic system requires them to also understand the process. For example, you light a candle with a small flame, but what is fire? How does Fire start? Those questions are the process"

Masaru nodded thinking that it was quite reasonable since the Humans did not have a cheat called Demonic Energy, they would still search for things that can replace what they don't have.

"For today's training we will focus on your demonic energy control, so make sure to study those books I gave you okay?"

"Yes, Big sis Circe"

Masaru nodded before manipulating his demonic energy to flow towards his hands, soon several demonic bullets materialized floating above his hands.

"Not bad, you can already use the Demon Bullet spell huh? Now then, try to change each of their nature to an element"

Circe was intently looking at Masaru who was focusing his concentration on the bullets, five minutes went by and the first bullet's attribute changed into Fire. Another 20 minutes pass by another bullet became water, soon three hours pass by when Masaru successfully converted the elements of his bullets to each element.

Fire, water, earth, Wind, Lightning, Ice and finally his unique Attribute Worthless. The colour of the worthless bullet was similar to a regular demon bullet but those who had the Belial bloodline could feel their signature attribute pulsing actively in that bullet.

"Now, while maintaining their attributes. Start with changing their shapes...."

Circe began to instruct him further in magic, perhaps it was the influence of the sacred gear or the super devil constitution he had, the magic he learnt was difficult at first but the second time he started to manipulate and control the magic even easier with each passing turn.

After another thirty minutes, Julia found Circe and Masaru but did not say a thing other than taking Masaru from Circe saying that she broke the rules in training him.

After that was a short training in using Holy or Light attribute magic training, but here Masaru used his sacred gear as a medium because of his innate weakness to holy attribute. Under the training with Julia, she taught him the way to manipulate the purity of the Holy Attribute to allow him to heal devils without hurting him, but instead, she was shocked when he used his worthless ability to remove the part which injures the devils instead of going through the long part.

"Geez Masaru!!! Why did you learn something like that! Now I can't teach you a lot!"

Julia threw a tantrum but still felt proud at this boy who managed to come up with such an answer only after a week ever since they started their training.

>\/<

It has been two years since Masaru came to the Belial Family, he was 10 years old today and because of the heated discussions, he was elected as the Heir of Belial Family since his father stepped down because he simply wished to stay in the Rating Games.

Masaru's growth in strength during the period of his training in Senjutsu alongside Shirone was abundant along with their tutelage under a Yokai who taught them great deal of things about the Yokai and their magic system, and Masaru learnt swordsmanship from Okita Souji who was requested by Diehauser since he did not have anyone who could teach him as well as Okita could.

But the thing that made Masaru known was his magic talent which was mostly thanks to his Sacred Gear and the Teachings of the two bishops of Diehauser's team, Circe and Julia.

Although he could not learn everything from the two ladies, he still managed to record most of the spells into his sacred gear so he could review it later in order to continue his magic training.

Because of Masaru's mindset of becoming strong in this world and stubborn nature he inherits from his father to never give up, the ladies of the peerage all treated Masaru preciously while the men all thought of him as a younger brother.

Even the Werewolf Jacob Black who was Diehauser's Rook felt even more comfortable that he was no longer the "Youngest one" and that was now passed onto Masaru.

"Little Masaru, your collar is crooked"

Julia, Diehauser's bishop was responsible together with Circe to be the escort of Masaru for him to gain his evil pieces today. Masaru who heard her came towards her

"Thank you Big sis Julia" Julia who heard Masaru smiled naturally as she felt even happier when Masaru call her elder sister, Circe who heard this felt jealous

"I can fix it too!"

Before Circe could come close, Shirone jumped in front of Masaru thinking that Masaru might get harassed (Spoiled) by a woman made her a bit jealous.

"What's wrong Shirone"

Circe smiled at this little girl who became more active and lively under the assaults of the ladies in the peerage who enjoyed doting on Masaru while teasing Shirone whom they noticed held special feelings towards Masaru who did not seem to notice it yet.

When Shirone noticed nothing was wrong and that she was being teased at again could only pout before standing behind Masaru

"Nothing"

Shirone responded. the two escort ladies could only giggle thinking she was cute, the four of them climbed into the carriage that led them towards the direction where Ajuka Beezlebub's Research Facility was at to get Masaru's pieces.

"Welcome, so you must be the new rising genius of the Belial Family huh? Nice to meet you Masaru Belial"

a bewitchingly beautiful and attractive young man appearing in his early twenties, with light blue eyes and green hair that is slicked back personally came to receive the guests he expecting today which was Masaru and co.

"It's an honour to meet the Demon Lord Beezlebub"

Masaru responded according to the etiquette required of him, and Ajuka simply waved

"No need to formalities but just as Sirzech told me... Your Demonic Energy has increased again... Interesting"

Masaru knew Ajuka was a researcher of a kind, whether it was the good or bad one he will never know but he did not feel any repulsive feelings towards him.

"Apologies, you must be Julia and Circe the Bishops of Diehauser it has been a while"

The two bishops curtsied

""It's an honour to meet you Lord Beezlebub""

"Pleased to meet you Lord Beezlebub"

Shirone greeted in the same way as the ladies did catching the attention of Ajuka who smiled knowingly,

"Oh, a Nekoshou of the Nekomata huh? it's truly nice to meet you as well"

After the introduction the five of them went into the building, first thing Ajuka did was do a formal test scanning on Masaru's body to see if there are any defects or possible issues but surprisingly he found nothing.

In fact, Masaru's body could now be considered complete devil and was already showing signs of entering the power ranks of a lower high-class devil physically, however, his magic-based rank could already be considered Peak High class when it came to amount of magic power. He still had untapped power that was still remaining sealed due to his physical body still needing to undergo more training, otherwise, his magic power reserves would have reached Ultimate Class by now.

"Although it might be stuffy to say this, it is thanks to the experiments those fools done to your body that you gained quite a strong adaptable body full of potential... I believe you should explore your sacred gear a bit more as I have a feeling that it is not simply a medium to use magic"

"Thank you for your advice"

Masaru was currently putting his clothes back on, with the testing done they were led towards a Pedestal made out of strange materials that were crimson/red coloured.

"This is the Evil Piece System, simply touch the pedestal and you will be registered as a King and your pieces will be generated"

Masaru nodded at Ajuka's instructions and walked over to the pedestal, placing his hand onto it. When the skin of Masaru's hand touched the slightly cold pedestal he felt a stronger heartbeat echo within his body while the demonic power was undergoing a purifying process improving the quality as well as increasing Masaru's physical base power in overall although it was minuscule.

Masaru could sense that his once abundant magic power reserve that felt like a raging river was now smaller and quiet like a small fountain. However, after probing he could sense the quantity did not decrease and was only compressed into a high-quality magic power without impurities which was a good thing for him.

When the process was over Ajuka came over to him handing over a rosewood box that held all of Masaru's evil pieces. Of all pieces, only his Queen, one Rook, one Knight, one Bishop and five Pawns pieces were mutated while the rest were regular,

"It's quite amazing to see yet another set with several mutated pieces, your potential is surprisingly good"

Masaru felt excited that he held his evil pieces firmly in his hands but the first thing Masaru had in his mind was Shirone, he turned around walking towards her.

"Shirone, would you willing to become my Rook?"

Shirone who heard Masaru asking her despite knowing her answer smiled warmly nodding, Masaru who confirmed her choice took out his regular Rook and held in front of her chest allowing the rook piece to enter her body.

"Under the command of Masaru Belial, you are reborn henceforth form this day, as my rook"

Circe and Julia felt happy for Shirone who waited for two years for this day, they watched how Shirone's body was giving off a faint crimson glow around her body for several minutes before the glow receded back into her body.

"With this, you are officially my Rook"

Masaru announced it to Shirone who happily jumped into Masaru's embrace

"Now Big brother can't escape from me-nyan"

--------------

Author Note:

The chapter has been edited, If I missed something please just drop a Paragraph Comment and I will Fix it