Start with the Mangekyō and leave Konoha with Madara.

"here we go."

In the temple at the deepest part of Ryuchi Cave, the White Snake Immortal moved his huge body and slowly climbed down from his seat, and his shadow completely covered Orochimaru's tiny figure.

She opened her mouth wide, her sharp fangs emitting a blinding blue glow in the light, and she moved closer and closer to Orochimaru's body.

Orochimaru took a deep breath, his face tense, but he did not close his eyes. Instead, he looked up at the other person's head with a burning gaze.

From Shen Yu's perspective, this scene was quite terrifying. The White Snake Immortal opened his bloody mouth, revealing his hideous fangs, as if he wanted to swallow him whole into his stomach.

Looking at Orochimaru who had not retreated even a single step, Shen Yu nodded with satisfaction. Well, he remained calm in the face of danger, worthy of being his disciple.

But what he didn't know was that Orochimaru's face was now pale, and his pupils were trembling as he looked at the huge fangs that were getting closer and closer.

The White Snake Immortal is huge, and the fangs alone are as big as an adult. If this thing were inserted into the body, even without the injection of natural energy, the person would die, right?

Just as Orochimaru was thinking rapidly, the White Snake Sage actually shrank its body size on his own initiative. The snake's head suddenly shrank, white scales all over its body squirmed, and even its flesh and blood shrank inch by inch. Finally, it turned into a short old woman with a gray scarf in front of the two of them.

The old woman floated lightly in front of Orochimaru, her fangs visible from her open mouth, and the width of her mouth was so wide that it stretched out all the wrinkles on her face.

"Pfft."

Even as Orochimaru's heart was pounding, the old woman had already sunk her fangs into his neck.

Orochimaru was stunned. To be honest, it didn't hurt as much as he had imagined. Instead, it was much gentler than when Princess Tsuzuki attacked him.

Immediately afterwards, a light and natural breath flowed into his blood vessels along the snake's fangs. It felt like being gently blown by a breeze, and Orochimaru couldn't help but shiver.

The White Snake Immortal opened his mouth, stepped back with a smile, and fell back into his seat.

"Is this the end?" Orochimaru was a little confused.

However, Shen Yu, who had been observing silently, frowned slightly.

In his perception, the seemingly gentle breath actually contained extremely violent energy. If it was not disturbed, it would naturally be as quiet as a distant mountain, motionless. But once it broke out, it would be like a storm passing through, like a huge wave destroying a boat. It was definitely not something that ordinary people could control.

At this moment, this natural energy, wrapped in the chakra of the White Snake Sage, began to flow along Orochimaru's meridians. Although it was slow, it was rapidly breaking away from the medium of the White Snake Sage's chakra and gradually and truly merging into Orochimaru's body.

In just a moment, Orochimaru's expression changed.

Pure natural energy invaded his cells and his body trembled.

He fell to his knees uncontrollably, gasping for breath, cold sweat pouring out of every pore of his body.

It is a very strange feeling. If I have to describe it, it is not pain, but an inexplicable sense of dissociation, as if I have lost control of my body.

He had no feeling in his hands and feet, and even his ears and eyes were not his own...

He opened his mouth wide and his long tongue hung down. He could clearly see the saliva dripping uncontrollably, but it didn't feel real at all, as if he was staring at a quietly flowing stream.

Soon, vision, hearing, smell, taste, touch... these basic senses are drifting away from me, being controlled by the power in my body...

This was a different kind of "loss of all five senses". Orochimaru could see and hear, he did not lose his senses, he just felt that they had become different.

In addition to the changes in his body, his consciousness also rose and fell, as if his soul had turned into a small boat, rising and falling on the rough sea, being torn and kneaded at will...

For a moment, Orochimaru couldn't even feel his own existence, and it seemed as if he was in control of everything.

Shen Yu's eyes were fixed on Orochimaru, and what appeared in those black jade pupils was no longer the feminine-looking young man, but a monster with a human body and a snake face.

His body gradually turned pale, and fine scales slowly grew on his body, like white armor, densely packed layer upon layer, extremely creepy...

The narrow eye sockets, the cold vertical pupils, the blue-black snake tongue...all these features indicate that he is being devoured by natural energy and evolving towards failure.

The old woman transformed by the White Snake Immortal crossed her legs, watched coldly, and even blew a smoke ring.

Shen Yu frowned and thought. As far as he knew, if a ninja wanted to use fairy techniques, he had to enter the fairy mode.

To enter the Sage Mode, one must first rely on oneself to "see" the natural energy floating between heaven and earth, and then use secret methods to absorb it with the body and store it in the chakra.

In the original time and space, when Uzumaki Naruto was learning fairy arts at Myoboku Mountain, he first applied toad oil, a specialty of Myoboku Mountain, on his body surface. This could help him absorb natural energy, step by step.

However, the White Snake Immortal skipped the step of perception and chose to directly inject natural energy into Orochimaru's body. This would certainly allow Orochimaru to come into contact with natural energy more clearly and intuitively, but it also made the danger level of this matter increase a hundred times.

If he fails to adapt, there will be no recovery.

Compared with the training methods of Myoboku Mountain, it is indeed a bit rough and unrestrained.

Watching Orochimaru gradually turning into a monster, Kanazawa suddenly understood why the Sage Mode was more suitable for people with extremely large amounts of chakra to practice.

People with small amounts of chakra find it difficult to grasp natural energy and are easily swallowed up by natural energy, just like Orochimaru is now.

Even people with huge amounts of chakra are at risk. If they are swallowed by natural energy, they will become part of nature. For example, those who failed in their training at Myoboku Mountain were turned into stone frogs, and those in Ryuchi Cave were turned into monsters.

Just as Shenyu was hesitating whether to take action, Orochimaru's breathing suddenly calmed down.

He slowly stood up, and as he looked up, his alienated body had returned to its original appearance.

The White Snake Immortal was amazed, took out his pipe for the first time, opened his eyes and looked at the young man below.

"Well, it worked," she said softly.

Shen Yu flashed in front of Orochimaru and put his hand on his head. After some inspection, he exclaimed "Huh" in surprise.

"Those natural energies actually disappeared?"

The White Snake Immortal smiled and said, "Born in nature, nature must return to nature. This is the law of cycle."

Orochimaru showed a look of having survived a disaster, "Did I... did I really succeed?"

The White Snake Immortal said leisurely: "The operation just now was actually just to test whether you have the potential to perfectly integrate with natural energy. The body, mind, and natural energy only need to achieve a momentary balance, and that will be enough..."

Shen Yu patted his disciple on the shoulder and said, "Work hard. For the next period of time, you will stay with the White Snake Immortal and learn the immortal arts."

"Master, what about you?"

"I?"

"Well, do you want to practice fairy arts?" Orochimaru nodded, "If it's you, it can definitely be possible!"

Shen Yu shook his head slightly and said meaningfully: "Let me watch you practice it first."