How To Survive In The World DxD With Fragment Memories

"Everything will be fine Ma-nyan" a beautiful nekomata girl with long black hair, wearing a white robe was currently ċȧrėssing the head of the boy who was a bit scared. Her name was Kuroka, she was the elder sister of Shirone who was also a nekomata and "adopted" Masaru" as her little brother. The two girls were currently trying to comfort Masaru who was told that he would undergo an experiment that was different from the experiments that Kuroka undergone, what the three did not realize was that the staff that was responsible for the experiments was about to inject the latest Super Devil Genetic Solution into Masaru to see the results.

"Kuroka-neesan...." Masaru was never scared of training nor hard work, but what he felt today was a dread looming over him like a grim reaper ready to reap his soul. If it wasn't for the training he underwent together with Shirone and Kuroka who taught him Senjutsu and a way to train his mind firmly he might have committed suicide than to endure the pain of the experiments further. 'Kuroka-nee is truly strong... To endure all those experiments.... If only I had power' He felt hopeless about his situation but he was in....

"You have to stay strong alright? Onee-san will save you" Kuroka hugged the young boy who was a few years older than shirone but he kidnapped like they were after he lost his mother, it was truly fate for them to meet while having similar past experience. 'I will kill that bastard for thinking he will lay his hands on Shirone... But for them to move Masaru to another experiment after such a short amount of time is not a good thing'

Just as the three were holding each other dearly a young man entering the room wearing the white standard uniforms most scientist wear while working in the lab, "Masaru, it's time" Masaru who heard this knew there was no chance for him to escape and if he resist they will use Kuroka and Shirone. "I will be back soon" Masaru gave another hug to Shirone and Kuroka.

"Come back soon Onii-sama" Shirone held Masaru in a similar value as she held her older sister, they spent a lot of times together when Kuroka was not around like reading books together. "I will" Masaru smiled warmly, it was by luck he caught a glimpse of Kuroka having a serious expression for a moment but went back to her usual jolly self. "Don't worry I will keep your bed warm for you nyan or would you like to eat me?"

"Kuroka-neesan!" Masaru blushed but smiled before leaving together with staff member, while walking in the corridor Masaru could hear faint talks in the background "I heard some rumours that the Gremory family sent their forces to investigate the Naberius Family" "Yes, apparently they are investigating the kidnapping case and luckily not the experiments we are currently doing" "But are we truly safe?" "Well as long as no explosion occurs in the facility then no one will ever be able to find it"

'Explosion? Could it be the way to save Kuroka-neesama, Shirone-chan and myself is to cause a explosion?' Masaru made sure not to show his thoughts on his face, but the scientist knew he heard the discussion and thought to throw a threat at the boy "Be sure to behave today, otherwise the two girls will be sent to the demon beast cage for battle training" The demon beast cage is a battle experience facility they constructed to test the powers of each of their super devil experiments, sending Kuroka would be fine but Shirone was still too young so Masaru simply nodded at the man with a slightly pale face.

After entering a double door room on the left, Masaru and the Man entered the experiment room that only held variety of machines responsible for maintaining the Capsule. On the right wall is a large black window but Masaru knew the scientists with measuring devices and such were on the other side, as per usual procedure Masaru took off his shirt climbing into the capsule allowing the man to insert needles that will be feeding him the liquid before closing the capsule.

On the other side of the room filled with staff members, all of them began to take vital measures, energy measures, etc. "Alright, we are about to start the Super Devil Project #51, test subject name Masaru Belial. Son of the Human woman called Cassandra and Diehauser of the Belial family. Concentration of the solution has been increased to 150% compared to the previous experiments, alright start the experiment!" "Understood!"

Soon Masaru felt how the capsule vibrated for a moment till he felt his feet was wet, when he looked down he could see red liquid was currently filling up the capsule so he closed his eyes as he experienced this kind of thing several times despite it being a bit scary and painful. When the capsule was full, the staff member inputted a command allowing the genetic solutions to start injection into Masaru's body.

Strangely Masaru felt his body was heating up from his arms at first before it began to spread throughout his body, the heat was increasing with each second causing even the restorative liquid he was floating in was starting to boil. At first he grunted when he felt like ants were gnawing at his bones making them itchy but afterwards it felt like his body was starting to shrink as if he had a malnutrition. "Activate the Nutrition Device and increase the Solution concentration output to 200%!" The leader of the team started to give out orders, Masaru felt his body was slowly returning to normal as it was consuming the nutrition it was being fed from a inactive needle that became active.

"But sir if we increase the output we might kill him!" The staff responsible for the Genetic Solution was getting scared that this madman would destroy another test subject, "Last time we also decreased the solution but never increased it, so increase it!" The leader gave the man a glare making him feel he would be 'Replaced' if he did not follow his orders so he increased the concentration output from 150% to 200% making it twice as strong.

"AAAAAHHHH!!!!" Masaru screamed within the capsule, bubbles were flowing out of his mouth like people running for their lives. The painful scream was heard from the scientists but they were used to this and did not even flinch, it was just a shame that another test subject would be scrapped afterwards. But suddenly a enormous explosion went off at one of the sections causing the men to panic.

"What was that!?"

"It's Coming from the Nekomata labratory!"

There was no need for another order as the men were currently packing most of the valuable things without minding Masaru who was still screaming in the capsule, in their mind the boy was already dead and there was no need to stop the process. But unknown to them Masaru actually died in that moment but at the same time another soul occupied his body, it would only be possible for them to pick this up if they looked at the vital measuring device and the abrupt moment he stopped screaming.

'What's going on!? Where am I!? IT HURTS!!!' Masaru was crazily bashing against the capsule door but it was firmly shut, he could feel his body was transforming and the thought of him becoming a monster during this experiments drive his dėsɨrė for power to escape his current predicament. Just when the people left the room and Masaru was alone, a flash of light erupted from the center of Masaru's ċhėst revealing a book with strange runic and alphabet letters making it appear to have been written in various languages.

It was almost a instinct or perhaps a subconscious memory he realize this book was a part of him, what this book granted him was the ability to use any form of magic known to the world. But that was something he did not pay heed, by the time the book materialized the Super Devil Genetics were already used up along with the nutrition. He was in a daze out of tiredness from enduring this pain and now the hunger worsened his condition, he was not sure what spell he took as he lost consciousness.

>/<

"To think they were experimenting here?" A Young handsome man wearing noble dress with his crimson hair was currently looking at the young nekomata girl one of his peerage members were treating at the moment, "Apparently one of the Peerage Members that is the sister of this girl went and got drunk in her power killing her master in the process" Sirzech sighed looking at the girl thinking that she will be having a hard time because of her sister and this event gave Naberius Family the chance to use this as a excuse to the council to stop his investigation.

Just as they were about to pack up and leave the rest of the aftermath to the Naberius Family Members another explosion occurred southwards of the labratory, "Okita, go check the situation!" Sirzech ordered his knight who wears a traditional Shisengumi uniform to inspect the explosion, "Roger!" Okita used his immense speed to appear in the location in a flash but never in his life would he expect to find another child a bit older than the girl among the rubbles.

He checked his surroundings and found that there was no one else so the explosion was probably caused by this boy, he dropped onto the ground next to the boy. Just as he was about to pick up the boy he felt a immense amount of Demonic energy within the body of this boy which he did not feel up till now, 'Good god... This amount is close to Sirzech-sama' without wasting time for the Naberius Family to "Reclaim" the child he picked up the boy and reappeared next to Sirzech.

"You found another child? Huh... this demonic energy signature... To think the Naberius family was the one who kidnapped his son" Sirzech instantly realized Masaru's origin by using his magic sense, it was quite known that Diehauser was searching for his only son. "Let us leave before they try to take the evidence" Sirzech smiled a bit now that he had Masaru, he had the evidence the family was kidnapping so he could now suppress the Naberius Family without opposition because it was thanks to the existence of his father Diehauser who was the current Champion of the Rating Games.

>/<

'huh?' Suddenly he realized he was not sure if the two girls were safe and was about to stand up but a hand suddenly appeared on his head, 'Where the hell did he appear from?' Next to Masaru's bed stood the Knight of Sirzech's family Okita Souji, "Whoa there boy, you are still recuperating. Unlike the young miss, your body constitution has undergone a change."

"Uhm.... Who are you?" Masaru asked, he only read a bit about DxD but he did not know about this person in front of him. Okita smiled broadly before introducing himself while extending his hand "The names Okita Souji, I'm the knight of the Lucifer Group and a Swordsman" Masaru took his hand and shook it "Name's Masaru. Sorry to be blunt but where is Shirone and Kuroka, they are nekomata girls"

"So their names are Shirone and Kuroka huh? Well I suppose the younger girl was rescued and already recovered but she is currently mute because of the trauma she experienced losing her sister. As for the Elder one, she is currently a wanted criminal for killing her master" Masaru who heard this blanked out for a moment but suddenly he raged "Who is the bastard to make her a criminal!? She killed her master to prevent him from experimenting on her sister! If you found me then you must have saw experiment equipment around me! Before I lost consciousness I was being experimented on"

"Although I can understand your reasons, but the fact a devil killed their own master is considered treason and punished to death for it. Right now we can do nothing to help her...." Okita felt a bit sympathetic towards this boy who was courageous enough to stand up for justice and righteous, Masaru realized that it made sense in a devil world filled with politics. "Uhm... Okita-san. Can you please let me see Shirone"

Okita was a bit bothered about the fact there was no confirmation about the boy's condition being stable, but from what he was seeing he could see the boy's condition was good enough for him to at least walk. "Very well" Okita helped Masaru stand up from his bed to see if he could stand on his own, when he saw Masaru standing perfectly fine he nodded and the two of them left Medical Room and went to the one a bit further away.

From what Masaru noticed the Nurses and Doctors were all avoiding that specific room and realized that Shirone was already being shunned, worried about his condition he rushed forward causing Okita to be surprised. "SHIRONE!" Perhaps it was because she heard a familiar voice, Shirone's eyes regained some light looking towards the door seeing the familiar boy who was at her side. "O-o-Onii-sama?" Shirone climbed off her bed staggering while looking at Masaru who was walking closer, when shirone smell the familiar scent she dearly missed she ran towards Masaru jumping into his embrace "ONII-SAMA!!!"

"Everything is okay Shirone, I am here and I will never leave you" Masaru was comforting the crying shirone, when Okita just arrived at the entrance he could only smile warmly feeling glad that the boy and girl still had one another after such a tragic event. Since the two need some time alone, Okita left Masaru who was currently sitting up right on the bed and Shirone was currently sleeping peacefully on his ŀȧp. 'There is too many things I have to prepare and it kind of sucks I could not change the fate of these two sisters of mine.... For now I will relax and recover, afterwards I will think of how I should move.'

>/<

Okita who just came to the Reception area to order a cup of tea noticed someone familiar, his gray eyes and hair while ignoring the people trying to surround him for a autograph was pushing through towards the nurse. "Nurse, do you have any patients in your facility by the name of Masaru!?" The Nurse was shocked at the desperate face of the underworld wide known Emperor of the Rating Games, Diehauser Belial. "Uh-- Uhm" because of the sudden approach of her idol her brains were lagging to response and Diehauser was becoming impatient.

"How is he?!" Diehauser felt desperate, he lost his lover her promised to marry after she notified him that he had a son. But before he could even meet his son, his lover was killed and he was kidnapped. When he heard his son was rescued and the Naberius family was behind his kidnap he first went over there to cause chaos big enough for the council to seriously punish the family in hopes to quell the anger of this Champion, since the family was being punished he felt that he needed to find his son as soon as possible and here he is.

"Just be quiet, he is currently sleeping" Okita warned Diehauser when he sensed that Masaru was currently sleeping while holding Shirone in his arms, when Diehauser saw this he remembered the report Sirzech gave him and instantly made a decision. "I want you to ask Sirzech-sama to arrange Guardianship of that girl to me" Okita looked at Diehauser with wide eyes as he knew that Sis-con wanted to bring this nekomata under his sister's peerage but he too felt that keeping these two together would be better for the girl. "Very well I will let him know"

'Sigh... How am I suppose to face him after all these years? Will he blame me for his mother's death?' Diehauser was having a conflict within himself while Masaru was slowly waking up, when he noticed another man next to Okita he felt slightly vigilant while subconsciously holding Shirone tighter. When Diehauser saw this although it felt a bit sad that his own son who did not know of him was vigilant of him but he still felt proud that his son first action was to keep someone precious to him close. "Okita-san, who is this man?"

"This is Diehauser Belial, he is your father. He looked for you these several years after your mother was killed" Okita explained bluntly as he felt there was no need to use roundabout words with this boy, Masaru who heard this remembered his mother told him about his father being handsome, gentle and full of grace. But never would he expected his father to be him, even he knew there was no information about him having a lover not to mention a son. This made Masaru realize that although this world has similarities it was still different, this was his reality.

"Father?" Diehauser who heard Masaru calling him father without any anger nor hatred made him flinched for a moment before he walked slowly towards Masaru. Masaru did not have memories of family other than his time with Shirone and Kuroka, so he was not sure how to react towards his now supposed father. Diehauser did not speak till he was close enough to grasp Masaru in a embrace together with Shirone was still currently sleeping, "Sorry.... I'm so so sorry that I could not be there for your and Cassandra..." The world's strongest champion in Rating game for the first time was crying while strongly embracing his son.

"It's okay Father, Mother would never blame you for what happened and neither will I" Masaru whispered this softly yet clear enough for Diehauser to hear it causing him to choke on his own tears for a moment, he coughed a bit to cover his embarrassment while pulling away. He felt ashamed for having no control over his emotion but no one would blame him since he was looking for his son for so long and finally found him, "I will soon be bringing you to the family where you can meet your grandparents and Aunt"

"Yes" Masaru smiled faintly feeling proud to have a father who was stubborn to never give up but extremely gentle as a father, although he was not the original Masaru but he will live in his place looking after his family. 'I have to become strong, because this world is where the stronger fist is right'