Because they formed within a Realm Space, they possess within them attributes of the Space Law. Also, because the world they are in haven't yet developed a world sentience, no one has stopped them from evolving, therefore having greater control of the law they received. Another thing was, the laws of this world aren't the only laws that was received by the Eternal Spirits; they also received the laws and powers that were used to create the worlds of the Diserian System, therefore, some of them has control over the power of Creation. Although not as powerful as the Origin, which came from Matthias' Primal Power within the Divine Siblings, it is still a significantly overpowered law to have.

It could be said that the Eternal Spirits of this realm began at a higher point than the rest of the normally formed Eternal Spirits.

If brought out there, these Spirits could start their own Pantheon, and with the recent disaster where gods went missing, they could dominate a large part of the universe with their power.

'If I can subdue them, I can form a new army for Heaven.' she thought.historical

The urgency within her to find the humans suddenly dissipated as she inhaled the mystical air around her deeply. The energy within this realm is already almost as strong as that of the Divine Heaven, and the energy composition here has something that is beneficial for her to advance.

She looked around and saw a towering mountain east from her current position. 'That can do.'

She immediately flew towards the mountain and rested within a cave at its peak. There, she started to cultivate and strengthen herself, training herself in wielding the laws of this world freely.

Years passed..

Near the mountain's peak, a 13-year old boy was climbing up while carrying a small girl. Her face was pale, and her hair was snowy white. She was tied to the man's body, preventing her from falling down his back.

Hiking the mountain of Wun has been the hardest endeavor that Rein has done since he opened his eyes and mind in this world. Even escaping a Deathreaper is easier than climbing this hellishly tall mountain.

His familiar, a four-eyed Shadow Crow, served as lookout for him as they advanced towards the peak.

"Kuro! Did you see something?" When his crow squawked, Rein held the rope that was tying the girl on his back and fastened his pace as he went to his familiar's side.

"Why?" Rein asked Kuro the Shadow Crow. Squawk! The crow replied.

"There's a terrifying energy in front?" Rein's eyes widened with anticipation. It may be the one he was looking for!

The only reason he was here in the first place was because his little sister was sick. Every year, their village conducts a contracting ceremony, where the spirits and humans bond with each other and establish a life contract to bind them as partners.

Her sister was a talented Spiritist even before she contracted her familiar. At the age of five, she already had control of the three elements of water, wind, and wood.The contracting ceremony only accepted children at the age of ten to establish contract with a spirit, but because of her talent, his sister joined the contracting ceremony at the age of six.

Considering her talent, it should've been just fine, but she contracted something that was not familiar with anyone within the village; a white snake.

Although it looked simple, the white snake possessed a very strong soul, stronger than even the most powerful of spirits they had ever known.

Greed took over, and the other elders wanted the spirit's power to be theirs. They immediately decided to do something, something that could be considered a taboo for everyone; forced unbinding.

It was an action that would cripple the Spiritist by forcefully severing the bond between its familiar. The familiar's soul would also be damaged, and because of the side effects, it was largely frowned upon by the populace. But because of human greed, the elders kidnapped her and hid her to conduct the procedure.

Unfortunately for them, when they tried to unbound the white snake from her, she screamed shrilly. The white snake's power was used, and everyone inside the village died due to their souls rupturing.

Fortunately for Rein, he was hunting for food when that happened, saving him from being killed.

When he returned, he saw everyone's conditions and rushed to find his sister. Without anyone stopping him, he immediately found her, surrounded by the elders with their eyes rolled back and blood pouring out of their orifices.

He heard her muttering the words 'I killed them' repeatedly, and concluded that she was the reason for everyone's death. Her familiar was nowhere to be seen, and on the back of her hand, there was a tattoo of a snake with a gem on top of its head.

He deduced that the snake was exhausted and went inside her soul to recuperate. But with her soul that was weaker than that of the snake, her soul immediately weakened even more, with the snake's soul absorbing her soul's power to heal itself.

Knowing that the life of his sister was in a precarious situation, he immediately carried her on his back, not minding what she had done to their entire village, and traveled around the world, searching for cure.

It was also at this adventure when he contracted Kuro, his Shadow Crow. Their bond grew and ended with them signing a blood pact with each other.

Later on, they became fortunate when they encountered a kind Iriath spirit, a spirit that contains the knowledge of nature. The Iriath pointed them east, to the Mountain of Wun, and said to them that there grows a miracle plant that could strengthen the soul.

Armed with that knowledge, and with her soul gradually weakening to the point that a huff would kill her, Rein, with his sister on his back, started their adventure towards the mountain.

Now, seeing that the miracle plant is near, Rein abruptly rushed towards the place that Kuro was pointing. Unfortunately, what he saw made his complexion pale.

Because of the urgency inside him, he blindingly rushed towards the energy, not considering the possible entity possessing that energy.

Growl. He couldn't even move due to fear. The aura that the beast was emanating shakes even his soul. It was a tiger that was twenty feet in length. Similar to the tattoo on the back of his sister's hand, it had a jewel of sanguine color nestled up on its forehead

Scales covered its entire body, and its blood red pupils were the only one a person could see beneath its armor.

Rein had read about the beast from records that came from the Iriath, and it was known as one of the deadliest spirit beasts to be found anywhere in this world; A Dragon Soul Tiger.

The beast was laid down on the ground, its eyes gazing laxly at him. It seemed like it was going back to sleep, but when its eyes traveled to his sister, its eyes revealed a hint of interest. Slowly, it stood up on all fours, and walked towards him step-by-step.

Unconsciously, Rein held his sister on his back, shielding him from the predator. The fear that was enveloping his entire body suddenly popped like a bubble, disappearing almost instantly when his sister was targeted.

The beast gradually neared them, and at last..

Sniff. Sniff.

They were in a standstill. The Dragon Soul Tiger was checking them on whilst Rein was staring steadfast at it.

"Her soul is weak." Suddenly, a voice sounded that made Rein flinch.

"Who are you? Where are you?" Rein asked with a shout, looking around like a threatened animal.

"I am here, in front of you." The voice responded back.

"Dragon Soul Tiger?" Rein was perplexed, because the Dragon Soul Tiger moved its mouth.

Shockingly, the tiger nodded. "You can talk?!" Rein shuddered in fright.

Any spirit, especially Spirit Beasts, Eternal variant or not, has limitations in terms of sentience. Majority would— at most— have intelligence comparable to a wise man, but they certainly wouldn't be able to talk, except if they have the soul attribute within them, which enables them to talk through the soul.

Still, although they can talk through the soul, it doesn't mean that they could talk vocally. To do that, they must become at least a Saint Level Beast to control their physical bodies to do and form what they want.

There are nine spirit stages that the people of this world know; Insentient, Shedding, Newborn ,Formation, Solidification, Pseudo-Ascension, Saint, Emperor, and God.

Insentient Spirits are spirits that are still forming within inanimate objects but already emit powerful spiritual energy. Shedding Stage would be the time when the spirit would go out of its inanimate body and float aimlessly. Newborn Stage would be the time it forms sentience, which would be the stage that majority of the spirits inside this realm was in. Formation stage would be the time it retrieves its inanimate body and forms it to become a physical body, enhancing its physical prowess as a whole. Solidification strengthens the physical body more whilst the Pseudo-Ascension would empower the soul to prepare. These two could be considered one stage, because they prepare the spirit for advancing to Pseudo Godhood.

The Saint Level Spirits that are known to the people were numbered, because they already have the ability to govern their own territories. Emperor Level Spirits, especially, could be considered non-existent to the humans, because such spirits are too elusive and no one has the ability or even the authority to meet one.

As for God Spirits, don't even. With the impossibility of seeing an Emperor Spirit, God Spirits are basically myths that were lost in time.

To see such a powerful beast eyeing his sister, sweat trickled down Rein's entire body.