Multiverse selection 1 Fairy Tail Karna

Karna kept analyzing the movements made by Zero. These movements might not directly help him, but as long as he could find the essence behind them, he might be able to invent a more suitable martial art for himself in the long run. So he continued facing Zero, gradually adapting to his strikes. But while he was learning, Zero was growing angrier by the second.

He had believed that by this time, he would have gained the upper hand due to the child in front of him holding back his strength, but he could slowly see that he was losing ground. Just when he least expected it, Karna began to strike back, forcing him onto the defensive—opposite to what it had been before, when Zero had the advantage.

Slowly, Karna began landing strike after strike on Zero. And even without the enhancement of Black Flash, each one was heavier than the ones Zero had landed on him before.

"You bast—" Zero was unable to complete his shout of anger, as the moment he tried to, Karna began his final combination, created from the experience he had gained over the last few minutes.

A strike to the calf took away his balance, followed by Karna grabbing his hand with his left and pulling him forward, then striking his jaw with his right, effectively knocking him unconscious. Then came a kick straight to the center of the chest, which jolted him back into consciousness while knocking the air out of him and sending pain surging through the upper part of his body.

Zero crashed into the corner of the room and remained still for a few moments. Afterward, he struggled to stand while coughing violently. Karna could hear him wheezing as he tried to rise. As he waited, he heard a sound in his mind:

[Mission 2 completed. Proceed to complete Mission 3.]

Mission 2 was defeating Zero using only archery skills, without relying on other abilities like Incursio or the Death Demon Slayer form. Karna had negotiated the use of hand-to-hand combat, and it had been allowed. Now, he had pushed Zero to his limit, leaving him with only one option:

The use of the forbidden spell Genesis Zero.

Slowly, Karna activated the Death Demon Slayer form. Darkness began spreading from the center of his chest, and unlike before, it seemed more controlled and started forming patterns.

His eyes turned pitch black. Any trace of aura or presence that marked him as a living being completely vanished. Unless someone saw him with their own eyes, no one could even tell he existed in the realm of reality. He watched as the black, shadow-like energy enveloped his fists up to his elbows. He could feel that his Death Slayer form had finally reached a state of balance.

In the past, every time he used it, the form had improved—like it was gradually adapting to his body. But now, he could feel it had completely merged with his being like it needs no more changes anymore, it might increase in intensity but the shape will remain the same. He slowly looked toward a few pieces of Lacrima nearby and was surprised to see not only were his eyes completely black, but two slits had formed from the corners of his lips, extending almost to his earlobes.

A new power of some sort... maybe something to use against Genesis Zero.

While this transformation was occurring, Zero was experiencing a crisis of reality. He could recognize what was happening to Karna.

Control over the power of death while still alive. No one else should possess that much power. I have to eliminate him right here, right now.

Zero possessed Brain's complete memories—memories of the R-System, of research into conquering death, including a few results stolen from former members of the Zeref cult. He had read obscure files written by deranged researchers who had vanished from history. All of them, despite their madness, had written the same warning in their journals, about the being who had conquered death and curses all those who try to control it.

There is already one monster with control over the domain of death. This one must have escaped its sight. If I want to destroy the world, I must make sure he doesn't grow any stronger.

With that thought, Zero activated Genesis Zero, completely engulfing Karna.

And Karna accepted it calmly. He knew this was the only way to complete the mission. His now-stabilized form had given him those new marks on the corners of his mouth, and if his guess was right, the mission's aim was for him to use the ability tied to those marks.

During a previous mission, Karna had acquired a few techniques for his Death Demon Slayer form, but that didn't mean complete mastery. It merely provided a direction when he had been groping in the dark. He could only claim full mastery once he reached the level of Natsu, Wendy, and the other Dragon Slayers. It was clear that the Dragon Slayer Secret Arts had been taught to them by their dragons, but over time, they had developed their own techniques—far more powerful than what they started with.

But for now, Karna focused on the dimension he was trapped in.

Genesis Zero was a dark spell created many years ago by one of Zeref's cultists as a requiem to the person he worshipped. In a way, the cultist had succeeded, he created the ultimate technique suitable for Zeref. Genesis Zero created an alternate dimension connected to its user. The dimension absorbed the souls of every human the user killed and trapped them there for eternal torture. The spell's attack involved dragging the opponent's body into this realm, where tortured souls attacked them indiscriminately—tormenting them and adding their soul to the spell's collection.

If Zeref had used it alongside the curse of Ankhseram, which killed everything around him, even Acnologia wouldn't have been able to stop him had he begun the process centuries ago.

What made it worse was that if the spell's user died, the souls remained trapped in that dimension forever. This was meant to be the fate of the souls in Zero's dimension.

But not today.

"It's time to free these souls," Karna muttered.

A/N- hope you like it and every 100 powerstone gets extra chapter of Jason.