The Blue World: A world where the law of the jungle prevails—the strong devours the weak. It is a realm dominated by destruction, where strange creatures, unknown to this world and its inhabitants, emerged from six voids 

.One type of these creatures resembles animals from the Blue World but is much larger, stronger, and emits a terrifying pressure that distorts the surrounding space. They call themselves the Beast Race

.Another type has blue scales and watery blue eyes, wields tridents, and controls water power. They refer to themselves as the Water Race.

Creatures from the third gate have various forms with horns of different lengths, red eyes, and bodies covered in black scales, but their chest areas vary in color. They have long black wings, with the number varying from one pair to two or three pairs. Their long hooves cause instant tearing upon contact, and they call themselves the Heavenly Demon Race.

The fourth type is human-sized but crimson red like blood. They have long fangs and a strange body that seems to lack bones. They call themselves the Blood Race.

Creatures from the fifth gate are human-like, but with a divine golden aura surrounding them, golden hair and eyes, and a disdainful gaze towards the world, including creatures from other gates. However, upon seeing the seventh gate, their disdain was replaced by respect and slight fear. This race is called the Celestial Humans or Primitive Beings.

The sixth gate creatures are hideous, sometimes resembling jellyfish. Their eyes have strange circles that cause confusion and illusions when looked at. They are known as the Enchanted Clan.

The seventh gate has not revealed any creatures, but the pressure from there was immense.

At the moment of their emergence, terror and destruction spread across the world. Black clouds filled the sky, and a terrible thunderstorm attempted to destroy the gates.

"..... The sky of this small world is trying to destroy us, keke..."

A black hand shattered the thunderclouds while saying this, and the thunderclouds dispersed.

Humanity was on the brink of extinction. Amidst the destruction, the thing that nearly crushed the small hope that remained was the revelation that among the Blue World's inhabitants were their servants, who had prevented the advancement of power and technology, controlling everything in the Blue World.

Amidst the angry cries of humans, they were coldly told by the creatures with demonic red eyes that the inhabitants of this world were merely fodder for the six other dimensions!!!!!! All creatures in the world were their food!!

In the midst of devastation, just before humanity's extinction, a human appeared wearing a white robe, his face obscured by a strange mist. He carried a long yellow-gold sword with strange engravings at his waist and wore a silver ring with a sky-blue gem and many strange runes on his left hand.

Upon his appearance, screams of terror erupted from the creatures, who attacked him in a frenzy.

"Trash..."

With an indifferent gaze, he uttered a word, and the creatures exploded into a mist of blood in an instant.

A strange silence fell over the place until the man left. One of the onlookers, trembling, spoke:

"...Is this human?!!..."

"...Are you an idiot? He's definitely the one sent by heaven to save us from these monsters..."

Another person replied with joy in his eyes but did not complete his sentence as seven strange eyes appeared from the void, staring in their direction, followed by immense pressure. The ground shattered in all directions except where the man stood, and the pressure was so intense that it threatened to crush people. However, he waved his hand and removed the pressure.

"...The damned human king again..."

"We will kill you this time..."

"...Kekekeke , interesting, interesting..."

"I'll definitely defeat you this time..."

"I will certainly take you in..."

"Your world will be bathed in blood..."

"We will flood your damned world..."

Immediately afterward, he drew his sword and slashed through the void, creating a black diagonal line that cut off the connection to those terrifying eyes. But he entered, and horrifying sounds came from within.

"...Hahaha, we survived..." followed by joyful cries. But is it all over?

.....

...What happened in these dimensions is unknown to anyone, but it is certain that the Blue World survived the crisis. Immediately afterward, someone shouted:

"...What is this?! Why did I become so strong all of a sudden?!..."

It was clear that he had become strong; he was effortlessly carrying a stone weighing over 150 kilograms.

Suddenly, large ships descended from the sky—many ships—and from them emerged numerous people. I don't know how they managed to fit so many into those ships, with some flying through the air and others being carried by visible, strange energy.

They were led by an old man with a kind appearance, gentle eyes, and long white hair, carrying a sword on his back. He looked at everyone, nodded in greeting, and then said:

"...Everyone, don't be afraid. We, the human race, will never surrender to these monsters. Although you are mortal humans, your Blue Planet is regaining its sealed power, and you can now train. I know you are confused, but we will explain... Said, tell them the details."

Said, a middle-aged man but very robust, with a kind face and eyes that resembled a mother's, walked over to them. He was surrounded by a mass of earth he walked on, and he said:

"...Brothers, your Blue World once had martial arts that are now legends, but they were sealed for reasons unknown to us. However, a humble person like me would not interfere in such grave matters."

"The important thing is that energy has returned to the Blue World, and you can train again. We humans come from other human dimensions, and we will establish branches of our academies in this world. Our academy is called the Sky Path Academy..."

After he finished speaking, the old man spoke again:

"...Alright, there are other academies, and each has an entry test with its own requirements for training. Choose any academy, pass the test, and you will join and learn martial arts..."