Emerald Forest Planet; the world where Logan was reborn.
A huge celestial body, more than three times larger than Earth, brimming with life yet equally dangerous. Unlike Earth, here land covered more surface, accounting for almost 65% while water covered the remaining 35%. From space, the planet appears like a glowing green jewel floating in the infinite dark world.
Across its land stretch ancient forests so dense that sunlight struggles to pierce the canopy, grasslands wider than entire nations and wilderness untouched and unexplored since the birth of the planet. Massive trees tower like guardians over the land, some were tall enough to reach the clouds. The sharp scent of vegetation, roars of countless beasts, and the constant rusting of life form the heartbeat of this world. For this boundless greenery, it earned the title: Emerald Forest Planet.
The geography of the planet was divided into four colossal continents, each separated from the others by vast, seemingly endless seas. They were known as:
the Eastern Continent, the Western Continent, the Southern Continent, and the Northern Continent.
Although the planet possessed more land than water, not all of it was suited for life. The Southern and Northern continents were plagued by extreme environmental conditions that made human habitation nearly impossible. The south was a scorching land of fire and molten earth, while the north was locked in eternal frost — places where even the strongest warriors risked certain death.
In contrast, the Eastern and Western continents offered climates where life could flourish. Rich soil, stable seasons, abundant spiritual resources, and safer ecosystems allowed civilizations to rise and expand. Over time, these two continents became the centers of human existence — prosperous, crowded, and culturally diverse, filled with kingdoms, sects, mercenary alliances, merchant guilds, and countless settlements that dotted the landscape like stars across the earth.
But everything changed 3,000 years ago — the moment that history would later call the Great Mutation.
It began quietly, almost unnoticed: newborn children started to display strange, animal-like features. Some were born with tails, some with horns, others with beastlike ears, fangs, or sharp claws. Within a decade, every child born — and even all humans younger than ten years old — underwent the same transformation.
At first, humanity panicked. Yet soon they discovered that this mutation was not a curse, but a blessing.
Their bodies became stronger, their senses sharper, and for the first time in history, humans could practice true Martial Arts. Strength, speed, and vitality soared to levels once considered impossible. Ordinary men and women could now train to become warriors capable of slaying beasts and defending cities.
However, humans were not the only ones who changed.
The vicious beasts prowling the wilderness and the man-eating plants rooted in ancient forests also mutated — but their evolution twisted their minds. Their intelligence increased, and a dark, murderous instinct awakened within them. They surged out of the wilderness in waves, attacking cities, toppling walls, and slaughtering millions of people.
Humanity fought back fearlessly. As warriors grew stronger, so did the enemy. Even more terrifying beasts emerged, ones capable of flattening mountains and turning rivers red with blood.
By the 20th year after the Great Mutation, humanity was pushed to the brink of extinction — half of the population on both continents was dead. Despair filled the world. Kingdoms fell. Cities turned to ruins. Hope was fading like the last embers of a dying flame.
And then, a miracle appeared.
A single man stepped onto the battlefield — a warrior whose strength defied logic and whose presence felt like the arrival of dawn after an endless night. His legend would come to echo through the ages, engraved into history under a single title:
The Light Bringer
With overwhelming power, he repelled the monstrous beasts back into the wilderness, stopping the massacres almost single-handedly. But he did not stop there. He took in students from all walks of life, teaching them martial techniques, guiding them to awaken their potential, and shaping them into warriors capable of defending humanity.
From that point forward, the remaining population rallied around him. Under his guidance, humans stood up once more — rebuilt their cities, reclaimed their lands, and stepped into an era where the will to survive burned brighter than ever.
Even now — three thousand long years later — that legendary figure still stands watch over humanity, an immortal sentinel, an eternal guardian whose name alone inspires both reverence and awe. No one knows how he has endured for so long; no one understands the source of his power. Yet every time a calamity looms, the Light Bringer appears, pushing back the darkness once more.
After recalling every detail of this planet's long and bloody history, Logan let out a deep sigh.
In his previous world, such a tale would have been hailed as a myth, an epic fit for storybooks or fantasy novels. But here, on the Emerald Forest Planet, this was not fiction — it was reality, recorded in textbooks and retold in classrooms across both continents.
To the people of this world, the Great Mutation and the Light Bringer were not legends…
They were history.
While Logan was lost in his thoughts, replaying the turbulent history of this world in his mind, the floating sword came to a halt without him realizing it.
"We're here."
The gentle yet authoritative voice of his Big Sister pulled him back to reality, cutting through the haze in his mind.
Logan blinked and shifted his gaze below. They had already arrived in front of their home — if one could even call it a home. It was enormous. With its towering walls, wide courtyard, carefully carved stone pillars, and polished wooden gates, it resembled a noble mansion rather than a house for an ordinary family.
In front of the building stood a group of children about the same age as Julie, all neatly lined up as if waiting for someone's arrival. Their clothes were clean but simple, and their expressions held a mixture of excitement, nervousness, and curiosity.
Behind those children stood an old woman, leaning heavily on a pair of wooden crutches. Her eyes remained shut, not out of disrespect, but perhaps because opening them took too much effort. Her back was severely hunched, bent as though she carried a lifetime of burdens on her shoulders.
Despite her frail appearance, she stood firmly on the ground — unwavering, sharing the cold air and hard ground with the children instead of resting indoors.
Her dignity, even in that weakened frame, was something no one could ignore.
As Logan stepped down, the first thing he noticed was the reaction around them.
The moment everyone saw Big Sister, a warm, genuine smile spread across her face — the kind that instantly softened the heart. Still holding Logan and Julie by the hand, she gently helped them down to the ground.
The children waiting outside could no longer contain themselves. Their restraint shattered in an instant as they sprinted toward her, eyes sparkling.
"Big Sister!"
"Welcome back!"
Their voices overlapped, full of joy and relief, and in the next moment she was engulfed in a tight embrace from all directions. Arms wrapped around her legs, waist, and shoulders — yet she showed not a hint of annoyance, returning their hugs with the same affection each child gave her. She stroked their hair, patted their backs, and laughed softly like a pillar of warmth they all depended on.
Seeing the scene, Logan's lips curved into a faint smile without him realizing.
He liked this atmosphere. A place where people weren't tied by blood, yet cared for each other sincerely — a place that felt more like family than any wealthy house or noble lineage.
Because the truth was…
This wasn't a big household or a powerful clan.
It was an orphanage — a place where countless children who had lost their parents found shelter.
Logan was one of them.
The old woman, standing silently behind the younger children, was the Director of the orphanage — the one who raised them all despite her frail body and failing strength. And the girl everyone called Big Sister… She was her daughter, dedicating her life to taking care of the orphans just as her mother had done before her.
Once the children calmed down and returned to their places, Big Sister slowly walked toward her mother. Up close, the old woman's frailty became painfully clear — the trembling of her thin hands, the dullness of her breathing, the way her weight leaned entirely on the crutches.
Big Sister's eyes reddened instantly.
"Mom… have you been well? I'm sorry I wasn't here to take care of you."
Her voice became gentle and shaky as she took her mother's hand. The moment their palms touched, she felt how weak and cold it had become.
The old woman smiled faintly, lifting her wrinkled hand with effort to touch her daughter's face.
"Don't worry, my child. I have been doing well all these years. I am simply old now — that is all."
Her tone was calm and soothing, as though she were comforting a small child instead of being the one who needed comfort.
But how could those words ease her daughter's worry?
Big Sister bit her lip, trying to hold back the tears. The strength of the old woman's spirit only made her heart ache more. Even after everything she had sacrificed and endured, she still forced herself to stand here with the children rather than resting inside.
Before the heaviness in the air could deepen, the old woman gently patted her daughter's hand.
"Alright now, don't be sad. Come with me — we will have breakfast together."
Her voice was soft, warm, and filled with the same tenderness that had guided countless children for decades.
Hearing her mother's gentle plea, Big Sister could only lower her eyes and nod quietly.
She quickly wiped the corners of her eyes and turned toward the waiting children.
"Everyone, come inside! Today, your Big Sister will eat with you!" she announced loudly.
The reaction was immediate — the children cheered, bursting with excitement. They sprinted into the house as though a treasure feast awaited them. Julie was the first to vanish inside. Logan followed at his own pace, walking calmly.
After all, inside him was the mind of an adult.
How could he behave like an overly excited child?
Just as he stepped through the doorway, a boy at the table yelled:
"Logan! Hurry up or we'll eat all the pancakes!"
Those words struck him harder than any beast's roar.
"You little punk!" Logan shouted, panic flashing through him as he instantly abandoned his dignity and bolted toward the dining table.
His earlier calm? Gone.
His adult mindset? Forgotten.
To hell with acting mature — food was sacred.
As long as he got his share, he didn't mind acting like a child at all.