The pirates sat and forgot, and they really believed the nine truths and one lie.

Tsunade gave Chopper enough time to think about it. She didn't want her good apprentice to agree on impulse. Learning fairy arts is risky, and failure will cause irreversible sequelae.

If everyone could really learn the art of immortality, then this kind of inheritance would have become commonplace long ago. Only true geniuses could learn it, and most mediocre people would just be stepping stones.

Before that, Tsunade wanted to show her two apprentices the power of fairy arts. If the fairy arts were not strong enough, there was no need to learn them.

Tsunade brought her two apprentices to the seaside and said, "The biggest risk of fairy arts is that they may become one with nature. I have seen descriptions of failed cases, such as parts of human limbs permanently turning into trees, or even parts of human limbs permanently turning into animals and becoming an alien."

Tianmu had once rehearsed the use of magic. The Mingshen Gate used by General Green Bull was the correct way to use magic. It had a strange suppressing power and could temporarily control the most powerful hollow.

Huang Mu developed a magic technique that suits him. The magic technique used by each person may follow the source from the same lineage, but after years of development, it has become a system of its own.

Tsunade took a deep breath, a long and steady one, absorbing all the natural energy around her into her body. She quickly adjusted her posture and formed seals with her hands. This was her starting move to perfectly integrate the energy in her body with the natural energy around her.

The next second, Tsunade entered Sage Mode. The small diamond-shaped mark on her forehead suddenly spread out, occupying the entire forehead like a blooming black lotus, and a deep black light flowed across her face.

At the same time, Tsunade's aura began to change drastically. The temperament of the gentle young woman was instantly replaced by a majestic and vast pressure.

The momentum continued to rise like a giant beast awakening. Every rise caused the surrounding air to vibrate violently, and even fine cracks began to appear on the ground.

"Is this the magic? Such a powerful aura, it's like he's a completely different person." Ke Ya couldn't help but admire the teacher's power.

Chopper was so excited that he couldn't speak. He must learn this powerful power to make up for his own shortcomings.

"After successfully constructing the sage technique in the body, these black stripes will appear on the user's face, proving that the user has entered the sage mode." Tsunade unlocked all her power at once, making the two good disciples feel awe.

The aura radiating from inside to outside finally settled at a breathtaking height. It was the terrifying power of the legendary Sage Mode.

At this moment, the strange doctor Tsunade is like a goddess of battle who has descended to the mortal world, exuding unparalleled power.

"The most basic way to use senjutsu is to enhance the attack power of the moves. You should stay away from it," Tsunade personally demonstrated to her two disciples the power of senjutsu.

"Further away, if you don't want to be blown into the sea, then farther away," Tsunade kept urging them. Chopper and Kaya had no choice but to obey the order and retreat again and again. Only after they retreated several hundred meters did the master feel satisfied.

Tsunade's originally brown eyes were now covered with golden fairy pupil patterns, and a light green aura of natural energy lingered around her.

She adjusted her breathing slightly and gathered the natural power of the earth and the ocean into her right fist. The hand that had healed countless wounded people now contained the power to tear apart the heavens and the earth.

"Open!" When the fist slammed into the sea with a tremendous force, it didn't directly contact the water, but the air several feet in front of the fist first erupted with a silver-white shock wave.

Immediately afterwards, a deafening roar resounded throughout the world, and two walls of water hundreds of meters high suddenly rose from the sea level several kilometers away, like a giant curtain forcibly opened by the hand of God.

The azure sea water showed a strange state of stagnation in the face of absolute power, revealing the strange sight of the sea being divided in the middle, which was 100 meters deep and over 100 meters wide.

This huge crack across the sea surface lasted for dozens of breaths, until the impact of natural energy gradually dissipated, and the water walls on both sides collided with each other, and the tsunami it set off was enough to engulf any coastal village.

Such a terrifying blow left Chopper and Kaya stunned. They were unable to describe in words how powerful their mentor was.

A full-strength blow pierced through the sea. If Tsunade had hit a human body with this blow, Chopper couldn't imagine the scene. An ordinary person wouldn't even have a complete corpse left, and there wouldn't even be any residue left.

After Tsunade demonstrated the power of the senjutsu, she gradually restrained her aura. The pattern on her forehead gradually faded and was once again sealed into a diamond shape, locked above her eyebrows.

"I just used magic to enhance my super strength. Normally, I can't use super strength to break through the sea. The increase in strength is at least a hundred times. I won't use enhanced attacks often. Natural energy needs to be accumulated bit by bit." In order to show off herself, Tsunade almost used up all the natural energy in her body in an instant to open the sea.

If this kind of attack is planned again next time, it will take at least ten days or half a month for Tsunade to absorb all the natural energy and replenish herself.

Tsunade does not expect Chopper to learn fairy arts immediately. The main reason is that Chopper can get started with fairy arts in a short period of time, and the natural energy in his body can be accumulated slowly. If he wants to become stronger, he cannot do it overnight, and it requires a long learning process.

Chopper has become completely excited and keeps jumping in front of Tsunade. He wants to learn the fairy technique now and he doesn't want to wait a moment.

Tsunade followed her eldest disciple's wishes and gave Chopper the ancient secrets and some experience in learning immortal arts, leaving it up to him to decide when to learn them.

The next morning, Chopper prepared everything and sat upright in the woods. Invisible natural energy filled the surroundings, and the ancient heritage book containing fairy arts was spread out in front of him.

"I can't let Teacher Tsunade down, for myself and for everyone." Chopper took a deep breath, recalled the key points taught by his teacher, and carefully took out a blue ball from his small bag.

The little hoof held the pill that could temporarily break through his own limitations, and his eyes were full of concentration and determination.

As the blue wave ball entered the mouth, a familiar force quickly spread out. This time he did not pursue changes in form, but instead focused on guiding the medicinal power to flow into the sensory organs.

In an instant, the world became completely different in his eyes. The dust flying in the air was clearly visible, and the subtle sound of grass growing in the distance reached his ears. The fragrance of the soil, the sweetness of the dew, and even the various energy breaths mixed in the wind, all poured into his senses like a tide.

He could "see" an invisible and intangible yet real energy flowing in the surrounding space. That was natural energy. This discovery made him ecstatic.

Chopper sat cross-legged according to the diagram in the book, trying to relax his body and mind and blend himself into the natural environment around him.

He tried hard to clear his mind of distractions and use his enhanced senses to capture and guide the free energy. At first, the energy was like a playful elf, elusive.

But he did not give up. He tried again and again. Gradually, a faint warm current followed his breath, slowly seeped into his pores, and flowed to his limbs and bones.

He could feel that something inside his body seemed to be awakening, producing a subtle resonance with this external natural energy. Originally, Chopper was a reindeer, it just had a human form. If you look deeper into its inner nature, it is indeed not a human.

Although the process was difficult and the flow of energy was intermittent, Chopper's eyes were shining with excitement. He knew that he had taken the crucial first step.

He continued to hold his breath and carefully guide the energy, trying to make it circulate smoothly in his body. Naturally, the energy was more compatible with Chopper's body than he had imagined.

Tsunade and Kaya, the master and disciple, were observing silently in the dark. Chopper, who was in a state of meditation, did not show any symptoms of discomfort, which made the two women put their worries aside.

The strange doctor's hypothesis turned out to be correct. Chopper was born to learn magic.