Start with the Mangekyō and leave Konoha with Madara.

At the Iron Country base, the wind and snow were blowing, and it was still cold.

Somewhere hidden inside a mountain, a huge laboratory is operating, every moment, seemingly never stopping.

There was a faint smell of medicine in the air. The room was brightly lit, with several cold white fluorescent lights illuminating every corner, casting a cold metallic luster on the alloy walls.

The light passed through the huge containers and petri dishes, and through some unknown liquids and tissue samples, casting a lustrous green light, turning the three young faces into a pale green.

"The fusion of ninja beasts is just the beginning. Next, I will need your help."

Hiruzen looked at Nen and Orochimaru opposite him with a sincere tone.

"What do you need us to do?"

"Help me catch someone." Hiruhu rubbed his hands. "The other party is an elite jonin from the Hidden Rock Village. He has mastered the Bloodline Genkai of Explosion Release. It will be very difficult for me to do it alone."

"Iwagakure?" Nian frowned slightly. "Isn't Iwagakure busy fighting with Konoha? If we weaken the fighting power of the Iwagakure Ninja at this time, wouldn't that be helping Konoha in disguise?"

The situation is turbulent at this moment, and the Second Ninja World War is in full swing. Although the Iron Kingdom is calm, the entire Rain Kingdom is in chaos.

Orochimaru saw the hesitation in Nian's eyes and asked, "Does it have to be now?"

Bei Liuhu nodded solemnly, "Before September 9 of this year, I must complete the swallowing of the Stone Ridge Mountain in the north of the Rain Country before the end of this day. The right time, right place, and right people are all essential."

"Can't I change someone else?"

"No."

The two looked at each other and began to ponder.

Seeing this, Bei Liuhu immediately gave them a reassurance: "Don't worry, I have already consulted Master about this matter, and the entire plan has been approved."

"Really?" Nian blinked.

"I wouldn't dare to lie about this matter even if you gave me some courage." Hiruhu raised his hands high, "He said that everything should be based on my plan. As long as it doesn't involve the tailed beasts, it's fine even if it interferes with the Ninja World War."

Hearing this, the two breathed a sigh of relief: "Well, that's no problem."

Orochimaru looked at Hiruko and licked his lips out of habit. "Your Kizuna no Jutsu can actually devour bloodline limits? Interesting. I am getting more and more curious about your plan."

"No, the Demon Geranium Technique has been perfected so far, it is easy to fuse a single attribute, but there is no way to directly devour the bloodline limit, so special conditions are required." Obiru shook his head and looked at Orochimaru:

"Remember what I told you about the topic? The activity of the Ghost Bud Luo plant is affected by astronomical phenomena and the environment..."

Hearing this, Orochimaru looked thoughtful.

"Different targets require different preparations, but I don't have any information about other targets right now, so I can only start with a single target. This also determines the order in which I must devour."

Beiliuhu spread his hands and told the story.

"In addition to the technique, the Devouring Bloodline Limit must possess the three elements of Heaven, Earth, and Man at the same time."

"First of all, the so-called heaven is the golden ring solar eclipse. When the sun is blocked by the moon and the calamity of the eclipse shines on the earth, the Ghost Gera technique will be active to an unimaginable degree. Even the blood limit can be perfectly integrated into my genes."

"And the location refers to the best place to observe an annular solar eclipse. I have calculated that there are basically several annular solar eclipses every year, but if you want to see an annular solar eclipse again at the same location, you have to wait 224 years. It can be said that there is only this one chance in a lifetime."

"Finally, people, the target I want to devour, this is a long story."

Hiruhu walked to the experimental table, took out a chakra test paper from the locker, and injected chakra in front of the two of them.

Nian opened her eyes slightly, the piece of paper was flat as usual, nothing happened.

"Unfortunately, my innate aptitude is too poor. I do not possess any of the five elements. Although I can master them through acquired training, it is nothing but a foolish dream to cultivate a blood limit."

Beiluo calmly threw the chakra test paper into the trash can and said, "After that, I used a special method to measure the only attribute I have, which is... Yang."

“This is both fortunate and unfortunate.”

"Fortunately, my goal is clear. As long as I swallow the bloodline limit containing the six attributes of wind, fire, water, earth, thunder, and yin, I can achieve the balance of yin and yang. Under the fusion effect of the Demon Geranium Technique, my body will automatically construct a relationship of mutual generation of the five elements and become an immortal perfect ninja."

"Unfortunately, due to the interference of the original Yang attribute, the bloodline limit that I integrated into my body will also be disturbed, generating unpredictable and strange changes."

Beiluo took out a plan from the experimental shelf and handed it to the two of them with great anticipation.

There were densely packed words on it, it was simply a mess, with all kinds of words and lines of different sizes, and even clumsy paintings between the pictures.

Orochimaru raised his hand slightly to show his refusal, "You know, I never understand what you write."

Beiluhu had to put away his expectant look and looked at Uchiha Nen with resentment.

In order to meet his expectations, Nian had no choice but to take the schedule. After opening the three magatama, he could understand the plan a little bit.

"Start with Explosion Style, then absorb Magnetic Style, Burning Style, Boiling Style, and finally... Sharingan!"

Orochimaru tilted his head, "Can you explain?"

"Of course." Hiruhu showed a satisfied smile, "Explosion Style is a perfect fusion of Earth Style and Lightning Style, and the next Magnetic Style is Lightning Style and Wind, Scorch Style is Wind and Fire, Boiling Style is Fire and Water... Follow this order step by step, and the five elements in the body will automatically achieve a perfect cycle. The last Sharingan Bloodline Limit represents the final step of the unity of Yin and Yang."

"Earth and thunder, thunder and wind, wind and fire, fire and water, yin and yang..." Nian muttered to himself.

Orochimaru pondered for a moment, frowned and asked: "Are you sure that your Kiyomizu no Jutsu can devour so many people?"

"Orochimaru, what do you think of the strength of that fused beast?" Hiruzen asked back.

"To be fair, it's quite strong. Apart from the summoning beasts from the three major fairy lands, it has basically no rivals."

"Well, the amount of Guiya Luo fusion fluid injected into my body is hundreds of times more than that." Beiluo pointed to his heart and raised a hand. "In order to practice this technique, these fusion fluids merged into my body inch by inch."

The skin on the palm of his hand rippled slightly, and a pool of inky liquid gurgled out, climbing up along Beiluhu's fingers, changing into various shapes in mid-air.

Somehow, Orochimaru even felt that the thing was alive.

Hiruhu took a deep breath and said, "If you can find all the targets that meet the requirements now, I can even devour them all at once. This is my fusion ninjutsu, Kigera!"

He raised an eyebrow at Orochimaru, "Well, this is my path to immortality, how does it compare to the immortality of your soul?"

Orochimaru raised his eyes and looked at him, his golden pupils flashing with an inexplicable fighting spirit, "There is still a long way to go..."