Start with the Mangekyō and leave Konoha with Madara.

There were shadows in the woods, a cold breeze was blowing, and an eerie "hissing" sound was heard all around.

"This is the snake pond." Xinya said suddenly, spitting out his tongue.

Orochimaru pursed his lips slightly, his ninja instinct made him alert, and a cold wind seemed to blow across his back.

Shen Yu glanced around calmly. Although the surrounding environment was dark, that was only for ordinary people. In his eyes, it was as clear as day.

After evolving into the "Poseidon Body", his already extraordinary eyes were endowed with powerful observation capabilities. They could automatically adjust the light reflecting tissue behind the retina according to the air humidity and the refractive index of light, fully capturing the available light and thus enhancing his visual ability in dark environments. This allows him to see directly into the deepest part of the trench.

After transplanting Uchiha Kagami's Mangekyō Sharingan, this pair of eyes also passively adapted to similar characteristics, and even with the blessing of eternal pupil power, the observation ability is even better than before.

At this moment, in Shen Yu's field of vision, there were countless dark and deformed snake-shaped flesh masses surrounding him.

There is no way to describe their faces with words, their facial features are distorted and deformed. The only thing in common is the snake tongues that keep spewing out of their mouths.

"These things are the losers who passed the test but failed to withstand the erosion of natural energy."

Xin Ya said slowly, "Because it was too ugly, even Tian Xin Shen Ji and the others couldn't eat it, so they could only abandon it outside the Longdi Cave. Over time, a snake pond was formed."

"I understand the logic, but what's the matter with this strong hostility?" Shen Yu glanced at it.

Xinya sneered, "This is the pathetic part of humans. Although their bodies have been corroded by natural energy and turned into monsters, most of their minds are still clear and they retain their human emotions. However, jealousy and greed have devoured their rationality."

"They are equally jealous of everyone who comes to Longdi Cave to practice immortal arts. Therefore, their favorite food is the corpses of those who seek immortality."

Xinya raised his head. "A large number of people didn't even get the qualification to pass the level, and were buried in their mouths. This is why Longdi Cave is known as the most dangerous fairyland."

"Instead of accepting your own failure, do you hate other people's success more?" Shen Yu whispered silently, with a flash of enlightenment in his eyes.

Xinya glanced at Orochimaru, who was full of vigilance, and sneered, "Don't be afraid. With me here, these monsters can't hurt you..."

Before it could finish its words, it saw Shen Yu slowly raise his hands.

"Things whose humanity has been devoured don't deserve to live in this world. In that case... let me send you to reincarnation." Shen Yu spoke calmly, his cold voice like a breeze from a graveyard.

"Shhhhhh!"

In an instant, his fingertips changed like butterflies, a residual image flashed in the air, and countless dense sounds of breaking through the air kept echoing in the deep forest, like stones falling into a mountain stream, one after another.

Xinya couldn't help but squint his eyes. With the help of magic, his snake pupils could see the night as if it were day. At this moment, he could clearly see that the surroundings were covered with dense silk threads!

Those silk threads are as thin as hairs, even harder to distinguish than real spider silk. Each one has a strong metallic luster and spreads in all directions like a spider web. The only source is Shen Yu's hands!

"Die."

Shen Yu pulled with both hands, and the silk threads intertwined and gathered. A faint breeze blew past, bringing countless tiny cutting sounds.

Then, a uniform groan was heard in the forest, and the creepy and dense "hissing" sound stopped abruptly, and everything was quiet.

"Boom! Boom!"

Trees fell down, fallen leaves flew everywhere, and a strong smell of blood suddenly filled every inch of the air. The deep red color soaked the earth and gathered into depressions in the fields.

"This...this..." Xinya's pupils trembled and she was completely dumbfounded.

It had thought that Shen Yu's methods were extraordinary. After all, it had witnessed with its own eyes the complete form of Susanoo, which was like the descent of the God of War. It had a power that could destroy everything in its path and level the Dragon Cave. But at this moment, this power that seemed light but could cruelly kill lives in the blink of an eye made it even more afraid!

Xinya shrank his neck, and at some point, even the snake body wrapped around Shenyu's arm loosened a little.

Shen Yu turned his head intentionally or unintentionally, glanced behind him, and a cold and arrogant smile flashed across the corner of his mouth.

Under Xinya's guidance, the two continued walking inside for a while, and finally stopped in the middle of an empty forest.

"Okay, I can only lead you here. Ahead is the first trial that is supervised by Tian Xin Shen Ji."

Xinya twisted his body and crawled to the ground, turned his head and looked at Shenyu deeply, "I'll wait for you inside."

After saying that, the red figure completely merged into the darkness and disappeared.

There was heavy fog all around, and one could barely see the undulating outlines, which were the shadows of the mountains.

Orochimaru took a deep breath and subconsciously took a step forward, but found that Shenyu suddenly turned around and walked in an inexplicable direction.

"Master?"

"This white fog is an illusion. If you continue to move forward, you will keep going in circles, which is also known as a ghost wall." Shen Yu looked calm and said, "The right path is under my feet."

Orochimaru immediately followed and said hesitantly: "Master, if we do this..."

"Do you think that my helping you is unfair and does not represent your true strength?" Shen Yu raised his eyebrows slightly and instantly understood his disciple's thoughts.

"Ah."

Shen Yu spread his hands indifferently, "This illusion is a method to test whether one's heart is sincere. For us, it is a complete waste of time and meaningless."

Orochimaru then nodded heavily and followed Shenyu obediently. Sure enough, within a moment, a bright golden light appeared at the end of his vision.

The two continued to move forward, and as the white mist gradually faded, a magnificent palace appeared before them.

The palace is decorated with gold and jade. Three rows of golden lanterns with the word "dragon" engraved on them are hung on the antique balconies. The golden light seen before was emitted from them. Although the architectural style is simple, it cannot conceal the amazing grandeur. On the plaque in the center of the palace gate are the three big characters "Longdidong".

Shen Yu stopped in front of the palace, touching his chin as usual, and remained silent.

"Is this the Ryuchi Cave?" Orochimaru took two steps forward and said in surprise, "It's not what I thought.

At this moment, accompanied by a "creaking" sound, the palace gate opened to both sides, and a brilliant light suddenly burst out, causing Orochimaru's pupils to shrink slightly.

In the gentle light like the warm sun, a graceful figure gradually became clear.

She had a pretty face of a standard beauty, dressed in white, with her black hair tied up in complicated buns, a golden crown on her forehead, light blush on her cheeks, and her long eyelashes carefully trimmed. At this moment, she respectfully gathered her long sleeves and gave the two of them a polite smile.

"You two, I have been waiting for you for a long time."