Noah immediately deployed the Demonic Form. He would still hold back the dark world for the time being, but he didn't dare to underestimate the Megalodon too much.
He didn't recognize its species, so his knowledge in the magical beasts' field couldn't help him in that battle. Still, that only fueled his battle intent. Noah had finally found the fight that he was looking for.
The Shark swam deeper in the darkness, but Noah knew that it wasn't escaping. He had felt its hunger when his consciousness touched its innate aura. The beast wouldn't give up on the chance to eat Noah.
The water in the area became denser as the Megalodon's aggression seeped through its fabric. It was as if the world itself had felt that a violent battle was about to unfold.
Noah created three fiendish copies, unleashed his saber-shaped runes, cast the Black Hole spell, and wielded the Demonic Sword. There wasn't enough primary energy to fuel his abilities in the area, but he knew that he would fix the issue soon.
A massive figure reappeared from the sea's dark depths and swam at an incredible speed toward Noah. He barely had the time to notice the Shark's charge before it arrived in his position.
The Megalodon bit on the seabed where Noah was, but it didn't feel any meat when it shattered the hard rocks through its teeth.
Instead, the saber-shaped runes that didn't crumble in the impact stabbed its flesh from inside its mouth, and the fiendish copies exploded to fill its insides with corrosive smoke.
The Black Hole spell didn't have the time to gather energy, so it crumbled during the impact without injuring the creature in the slightest.
The cloud that Noah had created when he activated the Demonic Form corroded its flesh, but it couldn't go past its superficial layers. Black spots appeared on its skin as poison entered its body, but the Shark ignored it.
The creature was too massive to suffer from the effects of the Black Mark spell so quickly. It would take a while before Noah's poison managed to affect it.
'It's fast,' Noah evaluated as he reappeared in a higher spot in the sea.
Noah had misjudged the Shark's innate abilities. He didn't expect such speed in such a massive creature, but it seemed to be its strongest quality.
The acceleration that the Megalodon could obtain was almost on par with his movement technique, and such feat revealed how amazing that ability was.
The Demonic Sword began to vibrate, and Noah focused on launching a tall slash with countless attacks around its shape. The black lines amassed to create a blow that carried every sword art that he knew.
The Shark didn't fail to notice the attack and accelerated to dodge it. Noah's slash crashed on the seabed and the various lines that made it crushed the rocky terrain, creating an uneven crater.
Noah sprinted to enter his dimension and follow after the Shark. He wouldn't let it prepare another charge.
The Megalodon pierced through the water at incredible speed, but a trace of anger came out of its figure when it sensed that its opponent was after it.
It was its first time finding an existence capable of matching its speed, and that discovery made it feel challenged to no end.
That was its hunting area, and speed was its ability. That small creature couldn't live after such an insult.
The Shark performed sharp turns and launched thick shockwaves whenever it swung its tail. The sea opened every time one of those attacks shot toward Noah, but he dodged all of them.
The beast eventually stopped to swim in a circle. A series of sharp attacks came out of its figure as a whirlpool formed in its position.
Noah felt forced to stop his chase since the pulling force of the whirlpool threatened to drag him inside that storm of shockwaves, but a dangerous sensation filled his mind when he came out of his dimension.
The massive shape of the Shark appeared next to him while carrying the momentum generated by its acceleration. The creature had already left the whirlpool. The beast had used it as a distraction to catch its opponent by surprise.
Noah released a roar as he kicked the water under him to shoot toward the creature's head. The sprint made him avoid the sharp teeth, but the impact between his fist than the Megalodon flung him far away.
Noah crashed on the seabed and straightened his position as his feet and Demonic Sword slid on the rocky terrain to stop his momentum. Three fissures had formed by the time he stopped, but the beast didn't give him the time to catch any breath.
The Megalodon reappeared above Noah. It had sprinted right after their clash, and his punch didn't slow it in the slightest. A fist-sized injury had appeared on its head, but it was only a few centimeters deep.
Noah felt the teeth of the Shark closing around him, but the creature suddenly retreated as a figure pierced the insides of its mouth and came out from the top of its head.
Night reformed among the darkness of the bottom of the sea. The Pterodactyl revealed its new body to the world before hiding inside the blackness again.
'Fine,' Noah thought as he evaluated the damages on his right hand. That frontal clash had broken his wrist and knuckles, but the black hole was already redirecting energy there.
'You are strong,' Noah concluded as a smile appeared on his face. Dense smoke came out of his chest and took the form of a massive winged snake that made the water tremble with its hisses.
Noah had decided to deploy his Companions after those exchanges. The Megalodon was too strong to face when he held back his best abilities.
It wasn't an issue of power levels. The Shark would destroy Noah's spells before they even formed, so he had to rely on more immediate weapons.
The Megalodon retreated in the darkness of the sea after Night wounded it. Noah could sense its intense anger, but he didn't plan to dodge its next attack.
Noah let go of his sword and waited for the assault to arrive. The Shark wasn't late, and its massive figure appeared on top of him in a second.
Snore shot forward, and its massive body coiled around the Megalodon to slow down its charge. Noah also shot forward to help his Blood Companion in the task.
The Shark pushed both Noah and Snore back, but the two didn't let go of the creature. He had both his hands on the Megalodon's head as he pressed on the beast with all his strength.
Night didn't remain still. Its figure flew inside Snore and severed the Megalodon's fins while Noah and the Snake restricted it.
The Shark eventually lost its momentum and found itself unable to escape the giant Snake. It would typically launch a series of sharp shockwaves to destroy anything blocking it, but something else prevented its movements.
Night had severed its fins, and it didn't spare its tail. The Shark was nothing more than a massive body without any ability to move. The Pterodactyl had taken away that ability from it.
Noah revealed a cold smile as he watched the helpless creature. The Demonic Sword returned in his hand, and he swam on top of its head until he reached the spot right above its brain.
The Shark didn't feel defeated yet and tried to struggle even without its core body parts, but Noah didn't lose his foothold on the creature's head.
Noah pointed the Demonic Sword at the Megalodon's head, and laws appeared in his vision. The world froze in his eyes as he concentrated on ending the battle in that last slash without ruining the creature's body.
Then, his sharpness shot downward, and the Megalodon's eyes went dark as Noah dug a hole that reached deep inside its brain.