One Piece - I'm Whitebeard

Kaido couldn't understand it. He knew Whitebeard was powerful, but he was still old. 

The battle had been going on for so long, and it was draining, yet Whitebeard could still unleash such powerful, continuous attacks.

It was incomprehensible to Kaido. No matter how strong a person is, their stamina should have limits, but Whitebeard's endurance seemed boundless. 

Facing Whitebeard's relentless attacks, Kaido was stunned, while Big Mom was silent, feeling the full extent of Whitebeard's strength and despairing.

Whitebeard was an unstoppable force, but Big Mom mistakenly believed she had seen his limits during their previous fights. She thought she knew his full strength.

But now, she realized Whitebeard's limits were still unknown. This monster had no boundaries!

Big Mom had completely lost her fighting spirit. All her current resistance is only the instinct of her own body. She had no hope left and no desire to continue fighting Whitebeard.

However, Whitebeard's relentless assault continued. After using his vibration power to crush them, he enveloped himself in Armament Haki and swooped down, knocking down both Kaido and Big Mom.

Whitebeard's Haki had reached its highest level: Conqueror's Haki at its peak enabled him to cause physical damage without a direct hit, Armament Haki capable of internal destruction, and Observation Haki allowing him to foresee the future. These upgrades had significantly amplified his power.

However, using these powerful Haki techniques was also very exhausting, which is why Whitebeard hadn't used them before.

With his extreme Armament Haki, Whitebeard's ordinary punch is as powerful as Kaido's full Raimei Hakke, and his heavy punch is dozens of times stronger than Raimei Hakke.

Under such an attack, Kaido and Big Mom couldn't resist. Whitebeard's punch shattered Kaido's dragon horns and caused Kaido to revert to his human form due to heavy injuries.

"Ding, you have defeated Kaido and obtained the card [Absorb Fusion]."

After Whitebeard forced Kaido back to his original form, a voice sounded in his mind. Each time he defeated a strong opponent, he received an ability card. The stronger the opponent, the rarer and more valuable the card.

Kaido is one of the strongest opponents Whitebeard has faced. Whitebeard quickly checked the card's effect. [Absorb Fusion] allows him to absorb the power of an enemy's Devil Fruit using vibration. He can then merge this absorbed power with his own vibration power to create a unique fruit ability.

"It's great that this card can combine Devil Fruit powers," Whitebeard said, pleased with the ability.

"Whitebeard, stop. I surrender. Please let me go," Kaido pleaded weakly, knowing that continuing the fight will only result with his death

There was no hope left. In a desperate bid to save his life, Kaido surrendered to Whitebeard in a low voice. 

Whitebeard stopped and looked at the dying Kaido and Big Mom. Despite the harshness of the battle, Whitebeard had little sympathy for Big Mom, who had hated him for a long time.

It's just that Whitebeard has power. Once a person has a strong power, he will be less harsh on those weak people, because they have no threat to him. In addition, Whitebeard also considered the potential alliances they could form in the future.

Because of their bad reputations, Whitebeard thought he could still use Kaido and Big Mom if he controlled them.

Now that Kaido had begged for mercy, Whitebeard decided to grant him a favor. He said to Kaido, "Since you've surrendered, the Beast Pirates must cease to exist. How about joining the Whitebeard Pirates?"

"No problem!" Kaido agreed immediately, knowing he had no room to negotiate with Whitebeard and that staying alive was his only goal.

Whitebeard then asked Big Mom, "And you, Linlin, will you continue to fight, or will you accept your fate?"

"I'm the same as him," Big Mom whispered. 

Whitebeard sighed and said, "Since your crew has joined the Whitebeard Pirates out of loyalty, I'll spare you. You'll all be part of the Whitebeard Pirates now. Don't show any dissatisfaction, or you'll face the consequences."

In this way, Kaido and Big Mom were defeated, surrendered, and joined the Whitebeard Pirates. 

However, although they joined the Whitebeard Pirates, this does not mean that Whitebeard immediately trusted them.

Next, Whitebeard prepared to escort Kaido and Big Mom back first to restrain them. Meanwhile, Aokiji and Enel joined Whitebeard and captured King.

However, before heading back, Whitebeard also wanted to test the effect of the new "Absorb Fusion" ability card he had just acquired. Of course, Whitebeard was eager to try it out immediately.

"Enel, use your lightning to attack me," Whitebeard instructed.

"Huh? Oyaji, why do you suddenly want me to attack you?" Enel was a little surprised.

"Don't ask questions. Just do it," Whitebeard said.

Enel nodded and quickly struck the taiko drum behind him, sending a powerful thunderbolt towards Whitebeard.

Whitebeard narrowed his eyes. As the thunderbolt approached, he used his vibration power to create a vortex that absorbed the electricity.

"Is this absorption?" Whitebeard thought. He adjusted the vibration force into a whirlpool, which gradually pulled in and absorbed Enel's lightning.

Instead of dissolving or bouncing off the lightning, Whitebeard absorbed it directly. He could now control lightning, which became unusually gentle within the vortex.

"Next, fusion." Whitebeard proceeded step by step, merging the power of vibration with the lightning.

A new technique emerged as he released a blue-white lightning bolt through the vortex, striking a distant area.

At the same time, it created a powerful vibration, causing a massive vertical crack in the ground.