Chapter 1: Beginning

Chapter 1: A New Beginning 

The wind whispered through the trees that flanked the mansion high on the mountain, just minutes from the city, but light years from the life Kaito once knew. The songs of birds and the rustling of leaves were the only sounds that broke the crushing silence. Alone, Kaito contemplated the imposing house that, since the death of his benefactor, had gone from being a refuge to a prison.

Four years, Four years since the elderly millionaire who adopted him died, leaving him with a vast property and an inheritance that meant little without someone to share it with. They all left, one after another. Only Matsuo, the faithful butler, returned daily, ensuring that the mansion did not fall into oblivion, just as Kaito feared it would.

Loneliness, that cruel companion, filled every corner of the house. At night, the echo of his footsteps echoed through the empty hallways, a constant reminder that he was alone.

Kaito was no ordinary child. Reincarnated into this world after a violent death, he had been a medical student in his past life, someone with dreams of saving lives.

The memory of the accident that brought him here was as vivid as it was painful: the roar of the plane as it fell, the screams of his companions, and then, the darkness. Remembering the people he left behind—his family, his friends, his dreams—scratched his heart, but also gave him strength.

"I can't stay stuck in the past," he murmured to himself, closing his eyes as he felt the breeze caress his face. "Ichiro-san told me that I had a destiny to fulfill."

Ichiro, the old man who gave him a home when he had nothing, had always seen something special in him. His last words echoed in Kaito's mind like a mantra: "You have a great destiny ahead of you, Kaito. Use your wisdom and heart to do good in the world."

The first sign of that destiny came when he turned eight. On any given night, Kaito woke up from a deep sleep with the echo of a voice in his mind: "Awakening of the Dimensional Travel System initiated." A holographic screen appeared before him, clear and direct: "Welcome, user. You have become the bearer of the Dimensional Travel System. From now on, you will receive tests and missions that will help you improve your skills and change the fate of entire worlds."

Kaito had been overwhelmed, but also curious.

This new life offered him more than just shelter; It gave him a reason to keep going.

The days that followed became a cycle of training and improvement.

Each test of the system pushed him to his limits, transforming his body and mind into something stronger, more resilient.

He had learned to fight, to survive, and to be independent in a mansion that, although cold, had taught him what it meant to stand up for himself.

Do you need anything else before I leave?" the butler asked one morning as he finished preparing breakfast.

"No, Matsuo. "I'm fine," Kaito responded, flashing a calm smile. "Thanks for everything. "I have learned a lot from you."

Martial arts was a discipline that Kaito had embraced with fervor. Every punch and kick he threw in his yard was an echo of the skills he once mastered in his previous life. He felt like those movements were part of him, as if his memories and this new body were merging into a single identity.

....

Kaito concentrated on every movement, letting the pace of his training drown out the loneliness that plagued him.

The mansion was big, too big for a twelve-year-old boy, but he had learned to fill that void with discipline. Martial arts were not just a hobby, but a way to hold on to something familiar in a world that was still foreign to him.

Every day was a test, both physically and mentally. He would wake up before dawn, go out to the garden and begin his morning exercises.

His muscles ached, but that only motivated him to continue. He couldn't allow himself to be weak, not when he had a system and remembering the multiple novels he read in his past life where the protagonists were sent to dangerous worlds.

"Come on, a little more," he said to himself, executing a series of kicks with precision.

The techniques he used were a reflection of his past life, a legacy of his training in the ancient world, where he had been a champion in several tournaments. Now, those skills returned to him with renewed strength, honed by the system.

However, it wasn't all physical. Kaito had also immersed himself in studying the theory behind martial arts.

There were books in the mansion's library that described ancient techniques and combat strategies. He spent hours reading and practicing, each movement analyzed and executed until perfection was achieved. He was meticulous, almost obsessive, in his quest to improve.

"These movements... feel so familiar," he thought as he repeated a series of blows. "It's like I've never forgotten them."

But even with all his training, Kaito couldn't ignore the strange energy he felt around the mansion. Sometimes, while training or meditating under the big oak tree in the backyard, he could feel a presence, something watching him from the shadows. He didn't know if it was the system or some other unknown force, but he didn't care; if something came for him, he would be ready.

The nights were especially disturbing.

The system didn't sleep, and every once in a while, a new test would trigger when I least expected it. One of those tests took him to a nearby forest, with only a knife and a flashlight. Survival in Nature.

The system had thrown him on this mission without warning, forcing him to hunt, build shelter, and find drinking water in the darkness.

"If I survive this, I can handle anything," he thought, heading deeper into the forest, guided only by the moonlight and the intermittent flash of his flashlight.

For days, Kaito was forced to live on what he could find: roots, insects, even small animals that he hunted with rudimentary traps.

Each lesson was difficult, but also vital. When he finally returned to the mansion, covered in mud and exhausted, a holographic screen appeared in front of him: Test Completed: Wilderness Survival.

Kaito plopped down on the ground, smirking. He had passed another test, becoming even stronger.

However, as he lay there, looking at the stars beginning to shine in the sky, an uneasy feeling came over him.

The system was preparing him for something, but for what exactly? What great destiny awaited him?

The answer did not take long to arrive.

One night, as Kaito rested in his room, a different energy filled the air. It was intense, almost palpable, as if reality itself was distorting around him.

The system, which was usually silent at these times, began to emit a low hum, a sound that vibrated in his ears and in his mind.

Suddenly, the ground beneath his feet began to glow with golden light. A magic circle formed around him, its intricate lines and symbols glowing with blinding intensity. Kaito's heart was pounding in his chest, a primal instinct telling him that something monumental was about to happen.

"What is this...?" He murmured, unable to look away from the circle that now surrounded him.

The golden light grew, enveloping him completely. Kaito felt a tug in his stomach, as if space itself had folded around him, dragging him toward an unknown place. Before he could react, the world around him disappeared in a blinding flash.

When the light faded, Kaito found himself standing in a completely different place. He was no longer in his room, or even in the mansion.

Around them, vast fields stretched as far as the eye could see, and the sky glowed a deep, almost unreal blue. The air was warm, scented with the smell of the flowers that grew in the nearby fields.

A new screen appeared in front of him, interrupting his amazement: Welcome to your first mission, user.

Change the fate of this world in any way you can; the greater the change in history, the greater the reward.

Kaito gulped, his thoughts racing in all directions. He had trained for years, prepared for whatever the system had planned, but he still felt like nothing could have prepared him for this.

But he was prepared to face any threat that came while in a new world, and somehow, the fate of that place was in his hands.

There was no turning back. This was the beginning of a new life, a new adventure, and Kaito was not going to fail. With a mix of excitement and determination, he began to walk, knowing that each step brought him closer to his destination.