Douluo: I can upgrade my luck by traveling through One Piece.

Covered in ice and snow, the White Frost Castle looks particularly mysterious, and the silence around it seems as if one can hear the passage of time.

Emily led her soldiers, constantly challenging their limits in the cold wind. The training slogans echoed in the cold air, inspiring everyone.

She knew very well that only in harsh environments could a true warrior be trained.

Whenever night falls, the soldiers sit around the campfire, sharing their dreams and hopes with each other, the warm firelight illuminating their determined faces.

In the "Thunder Castle" south of the "White Frost Castle", a scene of bustling activity comes into view.

The soldiers here are carrying out arduous training in the midst of violent storms, as if they have become one with the power of nature.

The sky was covered with dark clouds, thunder roared, and lightning flashed across the sky like silver snakes, sometimes cutting through the sky and sometimes flashing dazzling light on the horizon.

The rain poured down, hitting the soldiers' faces, mixing with sweat, and flowing down without them noticing.

The walls of Thunder Castle tower into the clouds, and the thick stone bricks seem even stronger after being weathered by wind and rain.

On the wall, traces of lightning were like scars, recording countless baptisms of wind and rain and traces of battles.

The soldiers were on the fortress's drill ground, and the sound of their footsteps and the beating of raindrops intertwined to form an exciting symphony.

Every charge and every shout is a challenge to the forces of nature and a breakthrough to one's own limits.

In this land of Thunder Castle, the soldiers' eyes gleam with determination and their hearts burn with passion, as if every lightning bolt is an eternal belief in their hearts.

The training process was not smooth sailing. The rain wet their clothes and the mud stuck to their legs, but no one chose to back down.

On the contrary, the storm made their will stronger and their desire for honor and responsibility stronger.

As night falls, Thunder Castle looks particularly magnificent against the backdrop of lightning.

The outline of the fortress appeared and disappeared in the lightning, like a sleeping giant, waiting for the moment to wake up.

The soldiers' figures intertwined in the rain, like a vivid picture scroll, recording their courage and perseverance.

Commander Rex is a young and passionate warrior. His voice is like thunder, shaking the hearts of every soldier.

When storms came, he often led his soldiers to conduct extreme training to face the wind and rain and strengthen their will and courage.

"Thunder Castle" is not only a training place, but also a cradle of dreams.

Young warriors gather strength here, hoping to fight for the peace of the Sabaody Archipelago one day in the future.

Rex often told them: "A true warrior is one who remains steadfast in the storm."
The encouragement filled every soldier with fighting spirit and ignited their longing for the future.

To the west of "Thunder Castle", there is a mysterious place called "Shadow Castle".

This fortress stands quietly like a forgotten dream deep in the dense forest.

The surroundings were shrouded in thick fog, as if isolated from the world.

Only the faint light occasionally shining through the treetops makes people realize that there is still a breath of human life here.

The entrance to Shadow Castle is entangled with ancient vines, and complex runes are carved on the huge stone door, as if whispering the history and secrets of this place.

As the breeze blows, the vines sway gently, as if inviting those brave enough to step into this unknown world.

The guards at the door were wearing black cloaks, their faces hidden in the shadows. Their eyes were as sharp as cheetahs, always alert to any movement around them.

It is rumored that these guards are well-trained shadow hunters who are good at sneaking in the dark and can approach the enemy silently and deliver a fatal blow.

Walking into Shadow Castle, the first thing that catches your eye is a narrow and winding stone staircase. On both sides of the staircase are towering ancient trees with moss all over their trunks, as if telling the vicissitudes of time.

With each step deeper, the air around becomes more humid, with a faint smell of earth mixed with the fragrance of trees, creating a suffocating yet wonderful atmosphere.

The mist lingered among the trees, sometimes thick, sometimes light, like ghosts whispering, conveying the mystery and danger of this place.

In the center of the fortress, there is a magnificent tower. The outer wall of the tower is made of black stone. The surface is as smooth as a mirror, reflecting the surrounding fog, like a huge black gem.

At the top of the tower is a sharp spire, like a blade piercing the sky, always alert to threats from all directions.

The windows of the tower are small and tall, and the faint candlelight shines through them, like stars twinkling in the darkness, giving people a sense of endless hope and desire.

Deep in the Shadow Castle, there is a mysterious courtyard hidden. In the center of the courtyard is an ancient fountain. The water of the fountain is crystal clear and emits a faint blue light, as if it contains some incredible power.

The surrounding flowers and plants appear particularly vibrant under the nourishment of the mist. The colorful flowers sway in the breeze, as if whispering to the visitors.

This courtyard is where the guards train. They can often be seen performing various difficult moves here, with their figures changing rapidly like ghosts.

Every corner of Shadow Castle is filled with a tense and mysterious atmosphere.

Here, people not only have to face the threat of external enemies, but also have to be vigilant against the darkness in their hearts at all times.

The guards' figures lurking in the darkness seemed to be a projection of their inner selves, carrying with them the fear of the unknown and the desire to survive.

In this mysterious place, time seems to have stopped, and the past and the future are intertwined to form moving pictures.

Commander Victor is a mysterious warrior whose fighting style is as silent and elusive as a ghost.

Victor trained a group of excellent warriors in the fortress. Each of them is very skilled and good at using the environment to fight.

Whenever night falls, they train under the moonlight, and their tacit cooperation is like a silent dance.

Victor often leads them deep into the forest islands to challenge themselves and find inner peace and strength.

He believed that a true warrior must not only have strength, but also wisdom and calmness.

The soldiers of Shadow Castle felt a deep connection with nature during their nighttime training.

They learned to listen to the whispers of the trees and catch the faint light of the stars in the night sky.

Everyone has found his or her own position here, and an infinite desire for the future has been ignited in his or her heart.

To the southeast of Shadow Castle stands an ancient fortress called Wind Castle.

It is like an eagle, overlooking the turbulent sea, and its majestic figure is particularly eye-catching in the wild world.

The stone walls of the fortress are covered with traces of time, with moss and sea salt interwoven into a mottled painting that seems to whisper about countless stormy nights.

The Windward Fort is located on a cliff, surrounded by steep rocks, like a natural barrier, guarding this wild world. Whenever the wind blows, the stone walls of the fortress will emit a low roar, as if responding to the challenge of nature.

The waves hit the cliffs, making a deafening roar. At that moment, it seemed as if the whole world was trembling with the power of this land.

Around the fortress, lush green pine trees stand facing the wind, their branches swaying, as if they are talking to the strong wind.

Their roots are deeply rooted, enduring the roar of the sea and the dance of the wind, showing unparalleled tenacity.

The sunlight shines through the clouds, giving the pine trees a golden glow, as if adding a touch of warmth to this wild world.

In this wild world, seagulls sometimes fly across the sky and sometimes soar over the sea.

Their calls echoed in the wind, like music composed for this magnificent scenery.

On the sea, white waves roll like layers of white gauze, concealing the mystery of the seabed.

Occasionally, a huge sea fish leaps out of the water, splashing water, breaking the tranquility of the sea, as if showing its strength and freedom to the world.

The residents of Windward Keep live a life closely connected with nature in this wild world.

When night falls and a bonfire is lit, the villagers sit together and share their stories.

The firelight illuminated their faces, and the warm flames dispelled the cold night wind.

The soldiers here train in the strong wind, tempering their will and courage.

Commander Thor is a bold and unrestrained warrior. His character is as unrestrained as the wind, and he leads his soldiers to meet challenges in the storm.

Thor often leads the team in high-altitude jumping and rock climbing training to challenge their limits.

He believes that only when one reaches the limit can one truly realize his potential.

Every time the training was over, the soldiers would gaze at the sea from the edge of the cliff, their hearts filled with longing for the unknown.

Thor's passion and vitality infect everyone. Here they are not only fighters, but also brave men who pursue their dreams.

To the north of "Stormwind Keep" lies a grim and tough fortress known as "Lone Wolf Keep".

In sharp contrast to the surrounding wilderness, the Lone Wolf Fort is like a sleeping giant, standing tall in the wind and snow, as if guarding this desolate land.

Its walls are thick and rough, and the stones are covered with traces of time, mottled cracks and deep scratches, telling stories of countless bloody battles.

As we approached the fortress, we were greeted by a biting cold wind mixed with icy rain and snow, which seemed to tear the will of every intruder into pieces.

On the high walls of the fortress, the soldiers carved the names of heroes with their tough hands and strong will, remembering their comrades who died heroically in the battle.

Their figures looked particularly pale in the cold wind; the determination on their faces and the loneliness in their hearts intertwined to form a tragic picture.

The interior of the fortress is a different story.

The dim firelight danced on the stone walls, illuminating the soldiers' tired but determined faces.

As night fell, the Lone Wolf Castle was shrouded in a mysterious darkness.

The soldiers sat around the fire; the warmth of the flames dispelled some of the chill and brought a moment of peace to their hearts in this cruel land.

Commander Derek is a taciturn veteran, his eyes are like cold blades, revealing fearlessness and determination.

Whenever night fell, he would stand alone on the top of the fortress, recalling the battles and sacrifices he had made in the past.

Derek trained a group of loyal and brave soldiers here, each of whom had a burning love for their hometown in their hearts.

Every time the training was over, the soldiers would sit around the campfire, share their stories and encourage each other.

Under Derek's guidance, they learned how to survive in adversity and how to find strength in loneliness.

To the southwest of the Lone Wolf Castle lies a magnificent castle called Dawn Castle.

The outline of Dawn Castle looks particularly charming in the first rays of sunlight in the morning, and the ancient stone walls are shining with golden light, as if telling its glorious history.

The castle is surrounded by lush forests with tall trees reaching into the sky and lush branches and leaves, as if guarding this peaceful land.

The architecture of Dawn Castle is unique, combining medieval grandeur and sophistication.

The main tower of the castle rises high into the clouds, with its spire pointing straight to the sky, as if trying to talk to the sun.

The tower is carved with exquisite patterns and mysterious symbols, as if every stone contains ancient secrets.

Sunlight shines into the hall through the windows of the tower. The golden light illuminates the family emblem hanging on the wall, highlighting the glory and heritage of this family.

As you enter Dawn Castle, you are greeted by a magnificent hall.

The floor of the hall was covered with thick carpets, and the footsteps here sounded particularly steady.

Portraits of family members from past generations are hung on the walls. Their eyes seem to be watching everyone who walks in here, as if conveying some invisible power.

In the center of the hall, a long dining table stood quietly, filled with exquisite tableware and sumptuous food, exuding an enticing aroma.

The backyard of Dawn Castle is a vibrant garden with colorful flowers blooming and emitting refreshing fragrance.

The path is lined with various flowers and plants, butterflies are dancing among the flowers, and bees are busy collecting nectar.

At the end of the garden is a small pond. The water surface is like a mirror, reflecting the blue sky and white clouds. Occasionally, a few ducklings play in the water, adding a bit of liveliness.

The environment of Dawn Castle is not only beautiful, but also full of mystery.

Legend has it that many legendary stories have happened on this land.

Whenever night falls, the outline of the castle appears particularly quiet under the moonlight.

The soldiers here train in the early morning sunshine, as if new hope is blooming in everyone's heart.

Commander Allen is a young soldier full of sunshine. His smile is as warm as the morning light, infecting every soldier.

Allen believes that only under the sunshine can one truly feel the power of life.

The soldiers of Dawn Castle often use singing to motivate each other during training. (End of this chapter)