One Piece: Lord of Calamity

Roa was sparring with Dylan. Although he could continuously grow stronger just by relying on the 'dark aura', that only improved his base stats. To learn how to fight, he still had to personally train. So, Roa, who was mostly idle, dedicated enough time each day to hone his skills and Haki.

"Clang, clang, clang!" The Haki-infused scabbard continuously clashed with Dylan's Haki-hardened palm strikes, producing metallic ringing sounds. As for why he used the scabbard instead of drawing his sword, it was, of course, because the Tiger Soul (Hu Po), after evolving to its extreme, was too sharp. Even Dylan's Armament Haki couldn't withstand its keen edge; he'd be drained dry.

"Warm-up's over, go all out, Dylan," Roa casually said, effortlessly parrying Dylan's attacks. His strength was far greater than Dylan's, and Dylan's advantage in Haki couldn't make up for it.

"Yes, Lord Roa!" Dylan raised his right hand. An invisible ripple suddenly began to appear on his blackened right hand. This was a technique where Haki from all other parts of the body was flowed and concentrated into one point for an attack.

Compared to simple hardening, this technique possessed far greater explosive power and the ability to project Haki outwards as shockwaves. Roa didn't know much about this type of Haki, he simply reiterated the theory that old man Hyogoro taught Luffy in the original story to Dylan, but he still successfully enabled Dylan to master this technique. However, he was still far from the higher realm of internal destruction.

The power of flowing Armament Haki was quite astonishing; when Dylan attacked again, Roa had to become serious as well.

While Roa and Dylan were having a lively clash, in the shadows of the deck to one side, Doflamingo was secretly observing.

This guy named Roa was only four years older than him, yet he was a monster beyond his imagination! That so-called 'puppet' that left him completely helpless, there were over a hundred of them on the ship! Just thinking about how powerful this force was made Doflamingo's scalp tingle.

And Roa himself, he didn't even dare to imagine. Doflamingo still couldn't forget that momentary fear; that despair and terror like a tsunami were deeply etched into the deepest parts of his body, making him shiver every time he recalled it.

Unable to resist him. Doflamingo, who had regained the arrogance of a Celestial Dragon after gaining power, reluctantly admitted this fact. Just thinking about resisting Roa made him break out in a cold sweat. In front of that monster, he was too insignificant.

"What are you still spacing out for?" A merciless punch came straight at him, sending Doflamingo flying directly into the ship's cabin.

"Ugh!" His body ached, but Doflamingo only dared to let out a muffled grunt, then immediately got up, silently picking up the dumbbell on the ground and began to train.

"Remember!" Barrett snorted. "Since Lord Roa allowed you to join, you must not make him lose face! Even if you train to death, you must become a strong individual! If you can't, I'll personally strangle you!" This guy is too weak! Even though he's a Devil Fruit user and has awakened Conqueror's Haki, his physical fitness is even worse than the child soldiers of the Land of Endless War at the same age! Without physical endurance as support, his ability and Haki are merely castles in the air.

The only thing this guy had to do now was one thing: train! Train to the death with the resolve that if you don't die from training, then train until you do!

Facing Barrett's bullying, Doflamingo said nothing. This guy is also a strong individual whom he cannot contend with! Just you wait! When I become strong enough! All of you, just you wait! Ro—Barrett! Just you wait! Doflamingo secretly vowed in his heart.

On the ship today, things were lively.

A few days later, in the North Blue, in the capital city of the Samir Kingdom, the war had reached its climax.

Boom! Boom! Boom! Cannon fire roared, shaking the earth. The sturdy city walls swayed precariously under the continuous bombardment. However, before the walls collapsed, with a loud boom, the city gate was directly blown into the sky.

Soldiers, like a tide, finally surged into the city. In an instant, gunshots rang out, and the city's defenders retreated steadily. With the fall of the city gate, the entire city descended into complete chaos.

Some civilians hid in their homes, the whole family huddled together, silently praying to God. Some civilians fled frantically with their families, but desperately found the roads completely jammed by people with the same purpose.

"The feeling of coming home!" Roa stood on top of a building outside the royal palace in the city center, breathing in intoxicatedly. "As expected, it has to be war!"

"..." Doflamingo said nothing. Madman! He now knew that human suffering was Roa's food. For this, he had even deliberately kept a group of pirates in the bottom of the ship as provisions for their journey. When he learned of this, Doflamingo couldn't help but feel his scalp tingle again because of Roa. Is he really human? He must be some kind of demon in human skin, right?

"However, Lord Roa, you really came to the right place." Dylan carefully observed the two sides fiercely engaging near the royal palace walls in the plaza below. 

"The Germa Kingdom's weaponry and troop quality are far superior to most other countries on the sea!" Especially their equipment. While the king's army of this country was still using flintlocks, the invading Germa Kingdom's army was already equipped with rifled guns, along with howitzers, rocket launchers, and heavy machine guns. The firepower of the two sides was not on the same level at all.

"Right?" Roa said with a smile. "Vinsmoke can become the cornerstone of the company. However, soldiers and weapons aren't the main point—" Roa looked down. "Oh! Here comes the main point!"

A tall man with wild golden hair similar to Shiki's strode forward, guarded by a group of soldiers. He wore a peculiar battlesuit and carried a spear crackling with electricity.

"Let me chop off the king's head and declare the revival of Germa!" The man raised the spear in his hand and forcefully hurled it towards the royal palace gate.

Whoosh! The spear of lightning pierced the sky like a meteor, directly penetrating the thick royal palace gate amidst crackling electricity. The defenders' defenses completely collapsed, and the Germa Kingdom's soldiers furiously poured into the royal palace.

"Those who don't want to die, put down your weapons!" The man, Vinsmoke Judge, the current king of the Germa Kingdom, roared. The soldiers guarding the palace finally despaired completely, their weapons clattering to the ground.

"Still too slow," Judge was very dissatisfied. Such a weak country had taken him nearly a month! Not enough. Germa's strength was still far from sufficient! With such power, how could he talk about recreating the glory of his ancestors and making the North Blue the Vinsmoke's private sea? The Raid Suits also needed further iteration. Furthermore, the plan for lineage factor modified humans had to be moved up the schedule!

As he was thinking this, his vision suddenly blurred.

"It's a pleasure to finally meet you, Mr. Judge!" A young man suddenly appeared before him, shaking his hand enthusiastically up and down. "You are very welcome to join my team! From today onwards, you are the head of the company's research department!"

Judge was bewildered. Who is this?