Start with the Mangekyō and leave Konoha with Madara.

In the 37th year of Konoha, the situation was turbulent and smoke of war was everywhere.

For some reason, the Sand Ninja and the Rock Ninja, who were fighting fiercely in the Rain Land, tacitly stopped their attacks and turned to attack Konoha, while showing no mercy to the Rain Ninja.

This is different from the small-scale frictions in the early stages. Both sides have sent out their elite troops, and it is completely a war level.

The flames of war are burning endlessly and intensifying.

In May of the same year, Hanzo, the leader of the Hidden Rain Village, could no longer sit idly by and watch his country being wantonly ravaged by the Sand and Rock Ninjas. At the instruction of the Daimyo of the Rain Country, he declared war on the Wind Country and the Earth Country at the same time, and signed an alliance with Konoha to share the same hatred and the enemy. The Four-Way War officially began.

The smoke of gunpowder spreads, and the Second Ninja World War begins!

Unlike the burning Rain Kingdom, the Iron Kingdom east of the continent, as a neutral country, is safe and sound, and its people live and work in peace and contentment, and are not affected by the war at all.

The wind and snow are blowing, but the peace remains.

If you really want to be picky, there is actually a certain impact. Because of the wars in various countries, the turnover of the Iron Country's first weapons guild, the Swordsmith, has increased rapidly in the past six months. With batches of swords being exported abroad, the commerce's coffers have become increasingly swollen, and Kakuzu shed tears of envy.

At this moment, in the northern part of the Iron Kingdom, outside a hidden snowy mountain range.

Beiluohu stood in a test site, rubbing his hands, not because of the cold, but because of excitement. Even his breathing became heavier, and he exhaled hot air in the heavy snow.

Even Orochimaru and Uchiha Nen, who were beside him, could hear the "thumping" of his heartbeat.

"Have you really avoided all risks? Have all experimental samples passed the fusion standards?" Orochimaru glanced at him and asked in a hoarse voice.

"What do you think I've been busy with all these years? While you were training with Master, I was also making progress..." Beiluhu didn't answer his question directly. His eyes were wandering and his voice was trembling: "My ninjutsu... is complete!"

Nian shrugged, "Please be more rigorous, both of you. Even a science idiot like me knows that only when the next experiment is successful can it be considered truly completed, right?"

In the open space in front of the three people, two giant ninja beasts were lying neatly. They were breathing evenly, and the shadows of the three-magatama Sharingan were reflected in their huge eyes. They were as quiet as cats.

On the left is a large bird with a dark green body, bright feathers and a beak as sharp as iron, but its entire head is covered with a thick layer of armor, which is very strange and obviously not a creature bred by nature.

In comparison, the creature on the right is a complete hodgepodge and cannot be defined as a single species. It has the characteristics of a turtle, a wild boar, and a lion. Special runes are printed on its huge shell, with densely packed "explosion" characters engraved on them.

Obviously, these two are fusion creatures that have been specially modified by Beiluhu.

Orochimaru, who had already practiced sage magic, had a very keen sense of perception. He entered sage mode in seconds, and as the purple eyeshadow at the corners of his eyes gradually lengthened, he instantly discerned the special aura of the two creatures.

The breath in the big bird's body is sometimes light and sometimes heavy, as if it is a mixture of chakras of wind and earth attributes. The body of the four-legged beast is mellow, violent, and hot, representing the chakras of water, thunder, and fire respectively.

What Beiluhu needs to do next is to fuse the two fusion beasts together again.

"How much Demon Geranium reagent did you inject into them?" Orochimaru asked with a frown.

"Your question should be, how much of the 'Perfect Version of Ghost Bud Luo Plant Fusion Fluid' did you inject into them?" Bei Liuhu laughed softly, "Who would remember those things? I only know that I am about to succeed."

Nian pursed his lips and said nothing. He was more curious about how many ninja beasts were fused together to form these two monsters.

After a moment of silence.

"Brothers, witness this moment!"

Beiliuhu slowly raised his hands and looked up at the heavy snow. The cold wind ruffled his long white hair, but his eyes were blazing, like a devout pilgrim.

With a "pa" sound, he clapped his palms together, and then changed into dozens of hand seals, which was dazzling.

"Let's fuse! The Demon Sprout Technique!!"

Suddenly, circles of ink-colored spells appeared on the big bird's back, covering its entire body like a spider web. Then, a mass of black liquid that was wriggling like paint oozed out, slowly flowing along the feathers, and quickly wrapped up the entire bird.

The word "encapsulate" may not be an accurate description. Nian thinks that "swallow" would be more appropriate.

Soon, the mass of liquid continued to wriggle, like a giant black python coiling its body, except that it had no eyes, only a big mouth that slowly opened, as if it had been hungry for a long time and couldn't wait to satisfy its desire for gluttony.

Under Beiluhu's control, "it" instantly found its prey, which was the four-legged beast beside it.

"It" didn't hesitate at all, and slammed down with its big mouth. With a "gulp" sound, it completely swallowed the entire body into its stomach in just a few breaths.

All that was left before the three people's eyes was a large mass of squirming black liquid.

"Bah..."

Bubbles continued to emerge from the liquid, and finally a huge amount of white steam evaporated.

"Are you sure—" Nian opened his mouth and wanted to ask about the progress, but saw Orochimaru shaking his head at him.

He immediately realized that he needed to stay fully focused during the experiment and could not be distracted for a moment. Any tiny thing would magnify the error infinitely and ultimately lead to failure of the experiment.

"It's okay." Bei Liuhu suddenly said, with a confident smile on his face, "I have performed this operation thousands of times, and I can complete it even if I am sleepwalking."

Orochimaru looked at him deeply. Perhaps, only he, as a fellow scientific researcher, could understand that this kind of confidence was not based on vague beliefs, but was built up from countless lonely, boring and complicated experimental results.

It seems that while he was practicing hard in Longdi Cave, Beiliuhu did not slow down the progress of the experiment, but continued to work hard in the lonely laboratory alone.

"Gududu..."

Soon, the ball of black liquid stopped bubbling and began to shrink rapidly.

Ten seconds later, Beiliuhu said, "It's done."

Nian concentrated and looked carefully, only to see the pool of liquid slowly disappearing and being retracted into the fused beast inch by inch until all the droplets disappeared and a brand new ninja beast appeared in front of them.

Its body has shrunk several times compared to before, but it has retained the huge wings. However, its entire body is covered with hard bone armor like a hawksbill turtle shell, its beak has been replaced by fangs, and two slender tail feathers are floating behind it.

"Roar!!!!"

It roared towards the sky, its eyes gleaming with ferocity, the five elements in its body surging, and it actually broke through Nian's illusion blockade.

The next moment, it suddenly took off into the air, swept its wings back, and rushed forward with a sharp sonic boom. Its target was Biruhu in the middle!

At the critical moment, Nian and Orochimaru attacked at the same time. With their sleeves fluttering, they shot out thick vipers and tough vines at the same time, binding the wings of the monster bird at the critical moment.

Even so, they were still carried several meters away by the ferocious force.

"call!!!"

The strange bird suddenly stopped in front of Beiluhu, and its mask was only one step away from his nose.

The whirlwind whistled by, carrying snowflakes with it. Bei Liuhu's hair was flying, his face had a sickly flush, his eyes were excited, and up to now, he had no intention of avoiding it.

If Orochimaru and Nen had not acted in time, he would have been smashed into a pool of minced meat, staining the white snow red.