Warning: english is not my first language, I'm french. However, I hope that you will find pleasure by reading it. Do not hesitate to tell me my mistakes in the comment, I intend to improve myself with more chapters I do.

The Nasuverse and Highschool DxD are both respectively TYPE MOON and Ichiei Ishibumi works.

please support the official release.

A great thanks to DarkLord331, that helped me greatly with the translation and offered me this challenge to make a Karna evolving in DxD universe (as an OP character).

Chapter 1: Rebirth

The end of the Great Grail War, which took place in Trifas, had been disastrous from a magical point of view.

Fourteen servants invoked, and one of the wishes that had been requested had not been fulfilled, as Amakusa Shirou Tokisada had died before it was completed.

Even as the Greater Grail rested between the legs of a particular black dragon, the system was still working. He needed a wish to grant. Unable to make a second one by conventional means, he realized one of those resting in the souls enclosed in him.

Renewed in a uterus.

Saving children all over the world.

Shout a name.

Complete a Noble Phantasm.

Recover a divine fragment.

So many potential wishes, so many possibilities.

Everyone knew what they wanted, and all wanted it from the depths of their beings. He needed something to choose from. A point of detail, indeed. But even a small end of point and detail could be significant.

For a moment, "it" considered Jack The Ripper's wish. The latter was common wishes unified in one, a conglomerate of children who died shortly. Several souls, gathered in a single wraith. The logic of a common wish in a single existence made it easy to choose. Except a little problem ready. At the bottom of the Grail, something prevented this wish, remembering that the child should not be originally be invoked. "It" was an anti-hero, and therefore, consciously or unconsciously, that choice could not exist. Yggdmillenia had already broken the rules by allowing the invocation of this category. In terms of a will, after the wraith came Vlad III. Of all, he was the one who most desired to see his wish fulfilled.

But the Grail, unfortunately, could not take it away from him.

For it had become a Noble Phantasm. Just as a skill could not be removed, it was unable to remove one of the foundations from their heroic existences.

The rest was on an equal footing. Except for three heroes. Siegfried the Dragon Killer, Achilles the son of Peleus, and Karna, child of the sun.

Three heroes who had no apparent wishes.

Siegfried could be removed. The soul that the Grail had absorbed had judged his wish already fulfilled.

Achilles was a hero who was ready to die. Living only led him to seek death again, and if a wish defined him, it was to seek challenges. Fuzzy. Undecided. Interpretable. Why not?

Something stopped the Grail. Karna. The Hero of Charity. The latter had no apparent desire. No wish. Only the benefits he was able to return to the world counted. But, deep down, the Grail perceived something, so opposed that doubt arose as to whether Surya's son himself was aware of it. Usually, the Grail would have deemed this unfeasible.

Has a shade ready. Kischur Zelretch Shweinorg. The latter had participated in the creation of the summoning ritual of the Heroic Spirits. The man who touched the Kaleidoscope, where the Grail used the third True Magic. These two wishes could be agreed, thus surpassing in number his rivals, Jack except, without opposing. Seven servants would allow to go back to the Roots. The young boy's wish did not take much energy. And something, somewhere else, seemed to be able to withstand his coming.

The Hero of Charity was going, for this time, to receive his just reward.

***Kuoh hospital***

"It's okay, Mr. Hyoudou, you can come in."

Hyoudou Gorou, his eyes full of hope, entered the room. He had already lost one baby with his wife, Miki, and thus perceived the success of their first child like a nascent miracle.

A child held preciously by his wife in bed, after the latter finished screaming. What joy both parents had felt when they heard the acute scream of the little being fill the hospital, thus seeing their efforts rewarded after their first failure.

Without further ado, the new father approached his wife, placing a kiss on his lips, before looking at the child. Something sits in his throat, preventing him from breathing.

The child was pale. Very pale.

So pale that he could have died. But instead, his body seemed to reflect sunlight, making his complexion almost supernatural. Bald, like any child, it was his watery eyes that caught his attention. Two perses eyes staring at them. Something was coming out of the child. As if they were holding a real treasure in their hands.

More than just a child.

Gold personified.

Initially, the parents wanted to name him Geshi, honoring the day of his birth, the summer solstice. Something, however, inspired them more. A transient idea, almost natural, as if a single name could present this child. They could almost hear the wind say a name in their ear...

But the wind doesn't speak, does it?

Born on June 21 at noon sharp.

Hyoudou Geshi Karna.

***One year later***

Motivated by their success, after the loss of their first child, Hyoudou's parents had made a repeat attempt.

The baby being relatively calm and sleeping a lot, and there were few moments where he needed them, which left them a lot of free time. When they didn't lose him cuddling, babysitting and playing with the newborn.

After a few months, two surprising facts happened. Already, the baby's hair was starting to grow. But if the babies, the first few months, have blond hair, in his case they were white. Immaculately white, comparable to its natural whiteness.

At first, this had worried Gorou and Miki, therefore, they asked the hospital for all possible tests and vaccines. The latter was formal: the child was in perfect health. And they had a hard time getting the needles into his body to sting him. A fascinating detail for the treating doctor. So, when Miki got pregnant again, he took the opportunity to observe the baby again, and quickly had Miki tested to see if it came from her or if the future child had this kind of peculiarity.

Neither.

The father was also quite normal.

He did, however, denote a slight detail in the case of the baby. His body was not in "perfect health."

It reached the humanly possible limit for a baby.

The little brother could then be born under the loving gaze of the parents and the fascinated one of the baby.

Born on April 16 at 4:36 p.m.

Hyoudou Issei.

***A few years later***

As the two brothers grew up, they became like day and night.

Karna was a relatively calm and serene child, as Issei did not lack energy.

One year only differentiating them, they shared all their toys and activities, and rooms. Even when he was offered a game of his own, the older one passed it to the youngest so that he could enjoy it too.

At first, Gorou was afraid of the mentality of young children.

If Karna seemed unconcerned, the fact that he spoiled his brother in this way worried him somewhat. At first. For it turned out that if Karna just loved his brother, he would never pass anything to him for free. Indeed, he usually imposed a small test on him, with the fruit of his desire as a reward. The more motivated he was, the harder the ordeal.

It was during one of his trials that the brothers befriended Shidou Irina, a "young boy" according to Issei. Who had didn't ask her for her first name, obviously.

The big brother usually watched the two play together with amusement. Although he mingled with them sometimes, playing superheroes wasn't his style. He sometimes forced himself to do so, to bring them a smile.

Overnight, however, a pair of earrings appeared on him. No one understood where it came from, and the only explanation Karna could give was that it was a 'gift.' This earned him a tirade on the principle of having to refuse the gift of a stranger, whom he listened attentively. Deep down, he could understand some of their worries, after all.

Shidou Touji, however, Irina's father, looked at him strangely. For the exorcist, something in Karna bothered him. Although he was the child of his friends, and a friend of his daughter, he could not appreciate it. The child was not mean, nevertheless it seemed... various. Strange. And although he would have enjoyed bringing the child to the Vatican, something in his heart prevented him from doing so.

It was only once he had left for good with his daughter, on the plane, that he realized.

This adorable little boy... frightened him.

***Karna, 17 years old***

Tomorrow, his little brother was going back to the same school as him...

This thought amused him. Seventeen years since he was here, making a fresh start, a "normal" life. Something had changed in him; he knew it. He could feel it. In addition to his rebirth, he had denoted that classes were no longer a limit for him.

Indeed, reincarnated, he had no vessel, but a perfect and totally human body, except for his profound nature which had transformed much of his blood into Ichôr, making him a little more a demigod day by day.

The more his blood became Ichôr, the more he covered what he had once lost.

His memory, his weapons, his mantras, his crystallized miracles. His armor and earrings were the first manifestations.

Soon, the gold would also appear, and the jewel adorning his torso also, proof that his rebirth would be complete.

At least he thought so.

Servants naturally had a defect. In fact, being dead souls, they could no longer evolve.

That was now his case.

He could not only recover what he had lost but also grow.

To evolve.

And take care of his brothers.

Issei was lovely from her point of view. Liking him such as Duryodhana in the past, he offered his uncompromising confidence, in addition to confronting the small challenges that Karna inflicted on him with a smile.

Considering the siblings he had never had, it was a delightful novelty. He had finally regarded him as his brother, and his parents as his parents, even if it took him a considerable effort not to give them back that goodness he had never deserved.

Also, if his little brother had turned into a real pervert, the Hero could only encourage him in his way. After all, if it made him happy and managed to find his way, who was he to stand in front of? The hardships he would encounter would be harsh, undeniably. Running a harem is no longer a period after all. But, he would still be there to support him. as his duties as a brother imply..

As for the second one.

Calling it, a small sphere appeared beside him. A little blue sphere, floating quietly. An Astra he never had in his life. A Noble Phantasm that didn't belong to him.

The Hand of Shiva the Destroyer. The Pashupata.

And inside, something was still asleep. A spirit. A consciousness that he tried, as he did every night, to wake up before falling asleep himself. His brother. His rival. Now his ally.

Arjuna.