It was precisely because the research had reached its most critical point that Leon completely ignored everything else, putting his entire body and mind into the experiment.
At this time, Garp just wanted to open a new bag of rice crackers to pass the time.
Unexpectedly, before he could make a move, Sengoku's fist shot out and stopped him.
After putting away the crackers with a displeased face, Garp lowered his voice and complained to his old partner.
"Are you kidding me, Sengoku? You won't even let me eat a rice cracker?"
After giving Garp a blank look, Sengoku also focused on Leon, who was working hard on his research.
His eyes were full of relief and anticipation.
"Don't make any noise, Garp. Don't disturb Leon. You must know that the hope of the Marines rests on him now. The Overlord Seraphim with one fruit ability is already an existence that can be compared with an Emperor who has eaten multiple fruit. And after successfully mastering the power of two Devil Fruits, this Overlord will be able to defeat any of the pirates' high-end combatants."
Sengoku kept speaking in a low voice, his eyes full of coolness.
He knew very well in his heart that once this Overlord successfully mastered the abilities of three Devil Fruits, it would leap to become the most powerful existence on the sea.
After Sengoku said these words, Garp could only hold his tongue.
He also knew that Leon's research was more important than the snack in his hand.
This ten-year-old child was the core that truly affected the growth of the entire Marine Corps' combat power.
After a full hour, Leon stood up abruptly with a trace of fatigue in his eyes.
In his hand was a tube of liquid like flowing amber, with two mysterious energies intertwined within it.
He looked at Garp and Sengoku with a smile on his face.
"I succeeded! Fleet Admiral Sengoku, Vice Admiral Garp," he said with satisfaction.
"I don't know why, but a flash of inspiration just came to me. Since I can't directly inject two kinds of Devil Fruit factors into the Seraphim, I'll just perfectly fuse the two factors together and then inject them! In this way, the success rate has been increased by over 60%!"
After Leon finished speaking, Sengoku stood up excitedly, his eyes sparkling.
"It's good that you succeeded! I believe in you, Leon, and the Marines also believe in you unconditionally. Only you can save the Marines and the world!"
Garp nodded aside, his eyes full of relief.
At this time, Leon also turned his head, put the liquid in his hand into a syringe and then directly injected it into the Overlord-class Seraphim in the tank.
After he completed this step, a strong wind suddenly passed through the entire laboratory, and the Overlord, with its white wings, appeared in front of Leon in an instant.
At this time, Garp was also excitedly rubbing his fists.
Seeing his old partner's reaction, Sengoku could only smile helplessly.
He could tell at a glance that Garp wanted to have a hearty fight with a strong opponent.
"Leon," Sengoku said with a smile, "give it a try and let us see how strong your brand new Overlord Seraphim is."
After Leon heard this, he also nodded and turned his gaze to the machine.
The pure white wings spread out immediately, and its speed reached its ultimate limit in an instant.
The next moment, the Overlord, holding a heavy blade, appeared right above Garp.
Garp just grinned and stomped on the ground fiercely.
Countless energies surged from his body, and the power of his Mythical Zoan Black Tortoise form also constantly emerged.
"This old man also wants to see how strong this phantom beast fruit is!" he said excitedly.
A huge Black Tortoise appeared in the center of the laboratory, and pitch-black armor also appeared on Garp's body in an instant.
With an extremely crisp "clang," the heavy blade, wrapped in mysterious power, was blocked by the thick armor.
At this time, Leon was calmly collecting his files.
Seeing this, Sengoku also ran straight over and jumped to Leon's side.
He knew that the most important thing in this laboratory was Leon.
If that old guy Garp got hit on the head, he'd probably just bruise it off, but if something happened to Leon, it would be troublesome.
It didn't matter if Garp got hurt; that old guy had thick skin and the terrifying recovery power of his Mythical Zoan.
But once Leon was injured, Marine's scientific research progress would completely stagnate.
At that time, if they had to face those explosively developing pirates, it would be inevitable that they would fall into decline.
Sengoku now tightly covered Leon's body with his own; this was the Marines' hope and he had to be protected at all times.
At this time, Garp in the center of the battlefield also instantly transform into the strongest half-beast form of his Zoan Devil Fruit.
With heavy steps, the power of his other two Devil Fruits burst out instantly, all wrapped around his iron fist.
With the superposition of the three fruits, the power of this punch had risen to a terrifyingly powerful level.
Countless data were flowing in the eyes of the Seraphim opposite Garp.
Its fighting brain was analyzing what kind of actions could be taken to reduce the damage under this situation.
And the next moment, Garp's iron fist came straight to the face of the Overlord.
A fierce explosion sounded as thick smoke was raised on the battlefield.
*****
At this time, on the fringes of the New World, the battle between the Marines and the pirates had entered a more intense state.
At the very center of the conflict, Kaido was roaring angrily.
Countless wind blades and thunderclaps circled around him.
This man who had already dominated the New World still had blazing ambition and anger in his eyes as he looked toward the distant sky.
Even as he faced Akainu's relentless obstruction, he was determined to snatch away one of the Seraphim that had the dual Devil Fruit ability.
With a roar, Kaido ignored the hot magma coming straight towards his huge body, bearing the immense damage as he swooped down toward the battlefield below.
After seeing Kaido's reaction, Akainu was slightly dazed, then he frowned, trying to figure out Kaido's motive.
The next moment, a bit of surprise and uncertainty flashed in his eyes.
'That's his plan!'
"Kaido! You pirates who only know how to copy others deserve to die!"
While roaring angrily, Akainu's expression became unusually serious.
He felt he had already guessed their next move: to take away one of the advanced Seraphim and then reproduce its technology.
At that time, the research advantage the Marines had worked so hard to establish through Dr. Leon would be equalized by them again.
Without any hesitation, Akainu rushed towards Kaido at full speed, landing directly on the dragon's back and aiming a flowing lava arm at him.
With a sizzling poof, Kaido's solid dragon scales were pierced by Akainu's magma.
But Kaido didn't care.
Now his entire mind and attention were completely focused on the Seraphim below.
He would endure a little injury, as long as he could go down and take away the machine the Marines had worked so hard to develop.
At that time, it would be handed over to Judge, Caesar, and Queen, and they too would master the technology of a dual-fruit Seraphim at a very fast speed.
Akainu didn't hesitate at all, attacking downwards with full firepower.
Countless blasts of blazing hot magma burned and corroded Kaido's body, but after a moment, he had no choice but to grit his teeth in frustration.
He could see that although his attacks could indeed cause Kaido a lot of damage, the other party's hide was shamelessly thick.
If he wanted to truly injure this monster, he would have to wrestle with him for several days.
But the current Kaido had only one purpose, and that was to take away their Seraphim.
[The one who owned the Seraphim with multiple fruit before was the Wb and Shanks alliance, while kaido and big mom alliance owned the technique for multiple fruits on humans, after the exchange kaido and big mom alliance manage to create a seraphim with single fruit ability]