Start with the Mangekyō and leave Konoha with Madara.

"boom!"

When the huge rock fell to the ground, Orochimaru suddenly started and drew out his kunai vigilantly.

Shen Yu looked around leisurely, with a smile on his face, as if he had anticipated everything.

This is a small stalactite cave, dark and cramped, with pits all over the surrounding walls. The densely packed crystals on the ground provide the only source of light.

"Om..."

Orochimaru's black hair flew, and a high-speed rotating chakra ball condensed in his palm, and with the swirling airflow, he pressed it hard on the stone door beside him.

"Spiral pills!"

With a loud "boom", a blue light burst out and the Rasengan suddenly exploded, but the stone wall did not react at all. Instead, Orochimaru was blown away by the powerful reaction force.

Shen Yu stretched out his hand lightly and grabbed Orochimaru's collar with one finger, preventing him from falling directly against the wall.

"Unlike the illusion in the first level, everything in front of you is a genuine sealing barrier. With your current means, you cannot break it," he said calmly, letting his disciple swing back and forth like a swing, his arm remained motionless.

The impact force gradually dissipated, and Shen Yu let go, allowing his disciple to fall to the ground.

"Sealing technique?" Orochimaru regained his composure, bent down to pick up a three-seven-color crystal stone, stared at its standard triangular pyramid outline, and seemed to be thinking about something.

He walked to the wall and after careful observation, he discovered that the pits on the wall were not naturally generated. Although they were of different sizes and shapes, the inner walls were smooth and flat, as if inlaid with invisible geometric shapes.

He looked around briefly and found a small triangular pit. He stuffed the triangular pyramid in his hand into it. The size and length were just right.

"Huh? You're quite smart!"

A woman's voice suddenly appeared in the cave. Orochimaru turned around and saw a petite figure in white.

The woman was floating in the air with her legs crossed. The decorations on her body were not much different from those on Tian Xinshen Ji. The white ribbons behind her moved without wind. She had a lovely face and a pair of round almond eyes that were full of cunning.

"Let me introduce myself. I'm Ichikishima-hime, and this is the second test leading to the Ryuchi Cave."

Orochimaru licked his lips, "If I kill you, the stone gate will open."

"Eh?" Ichikishimahime blinked and chuckled, "Unfortunately, this barrier is not my work. I'm just an invigilator. Killing me is useless."

"That's really a pity." Orochimaru shook his head and sighed.

"Eh, I'm looked down upon." Princess Ichikishima floated in front of Orochimaru and said, "Don't look at me like this. I am an immortal after all. If we really fight, you may not be my opponent."

"What about me?" Shen Yu asked with interest.

"You don't count." Ichikishima-hime glanced at Shenyu and said calmly, "Master Baishe has told you to just ignore it. This little test won't be difficult for you anyway."

Orochimaru picked up another crystal and said calmly, "If my guess is correct, I probably need to fill the wall with all the crystals in the correct positions to pass the level, right?"

"That's right, you are really smart."

Princess Ichikishima tilted her body and shook her head, "I will not let you go until all the holes in this stone chamber are filled up."

“All the holes?”

Orochimaru pondered for a moment, then formed seals with his hands, "Shadow Clone Technique!"

"Bang bang bang bang!"

A burst of white smoke dispersed, and Orochimaru created four shadow clones. Several small snakes crawled out from the cuffs of each shadow clone at the same time. They crawled in the crystal pile and returned the crystal selected by Orochimaru to his hands.

"It's really strange. I didn't expect you could control snakes?" Princess Ichikishima said in surprise.

Orochimaru held a small snake in his palm, watched it hiss and spit out its tongue, and whispered: "I raised these snakes myself. I referred to the method of the Aburame clan in Konoha Village to raise insects. I fed them with my own chakra since they were young, so they have a similar mind."

"Besides, I don't like being disturbed when I'm working." Orochimaru glanced at her sideways, "You keep talking to me, which will delay my progress."

Princess Ichikishima sighed with regret, "How cruel."

Orochimaru immediately became focused, and his clones also began to act, filling the wall with suitable crystals little by little.

On the way, Orochimaru encountered an "L"-shaped hole, but he didn't have a crystal of this shape in his hand. He just thought about it for a moment, then combined two rectangular crystals of the same width and stuffed them into the hole.

In addition, when he encountered some crystals that were larger than the size of the hole, he would break them off without hesitation, cut them into the appropriate size with the wind blade, and then fill them in perfectly.

Seeing this scene, Princess Ichikijima widened her eyes slightly.

You know, this is the most difficult step in this trial.

It is said that all the holes will be filled, but the sizes of the crystals and the holes are not one-to-one corresponding. There are always some strange-shaped holes that cannot be filled. No matter how hard the trial-takers search, they cannot find a suitable crystal.

During the long search, one's will will be gradually worn away, and one's chakra will be devoured like the marrow being sucked out of one's bones.

But... Orochimaru seemed to have taken this step directly.

Soon, with the concerted efforts of his clones, Orochimaru filled all the holes in less than half an hour. As the last crystal was embedded in the pit, the entire stone chamber suddenly disappeared and the surroundings turned into mist again.

Princess Ichikishima sat on a large rock, her two slender legs hanging down, and asked curiously, "How did you guess that step?"

Orochimaru asked in confusion: "Which step?"

"Oh, that's the step where you create the shape yourself!"

"Oh, you mean that?" Orochimaru said casually, "When faced with a seemingly fixed problem, you need to change your mindset and solve the problem from a different angle. If there is no suitable path, you need to create one yourself. This is the basic quality of being a researcher."

"You're awesome..." Ichikishima-hime pouted, took one last glance at Shenyu, and then gradually disappeared.

"Okay, Master, we can go to the next level." Orochimaru turned and looked at Shenyu.

Suddenly, a cold wind crept across his back. He opened his eyes wide instantly. Before he could turn around, a head with a human head and a snake face approached the back of his neck silently and bit him.

"puff!"

Orochimaru felt a tingling pain in his neck and his face twisted. Out of a ninja's subconscious instinct, he immediately raised his hand to fight back, but the opponent dodged it easily.

A fairy-like female figure appeared behind him at some point, and her long neck shrank like a snake and returned to its normal size.

"Nice to meet you. My name is Tsujinji, and I'm in charge of the third test."

The woman touched her lips, her fangs retracted, the white scales disappeared, and the ferocious snake face instantly turned into the face of a beauty with a soft voice.

Orochimaru held his neck tightly and reached into his waist bag, "Are we finally going to fight this time?"