The Training Finally Begins, Uchiha Dan vs. Tsunade

Five minutes later, the extremely fast Uchiha Dan and Tsunade arrived at the foot of a mountain and rushed towards the summit. Before long, they saw the incredibly huge main body of the Slug.

"Is this Sage Katsuyu?" Uchiha Dan asked in surprise, looking at the colossal body that was five hundred meters tall even while lying down.

"No, that's just a part of Sage Katsuyu!" Tsunade explained. "It's just that Sage Katsuyu's main consciousness resides in this part."

"No one has ever seen how big the complete Sage Katsuyu is."

"Uh..." While Uchiha Dan marveled, his gaze flickered strangely towards Tsunade.

Who was it that later said during a fight that she could summon one-tenth of Sage Katsuyu?

You clearly couldn't even summon one-tenth of this small part, could you?

Uchiha Dan had already found it strange.

Sage Katsuyu was a Sage, on the same level as the White Snake Sage and Fukasaku.

Were creatures like Manda and Gamabunta even worthy of being compared to Her?

Even one-tenth of Sage Katsuyu should have crushed Manda and Gamabunta, yet they showed no outstanding performance, truly unworthy of the title of Sage.

So it was just a small part of a small part. That made sense now.

Fortunately, Uchiha Dan knew that Sage Katsuyu was very gentle; otherwise, he would have been terrified to death by this mountain-like physique.

After climbing for a while, Uchiha Dan finally breathed a sigh of relief because the corrosive gas became thinner the higher they went.

By the time the two reached the summit, the air was no different from the outside.

"Hello, Uchiha Dan!" Sage Katsuyu said first in a soft voice, without any airs. "Do you want to learn Sage Mode?"

"Hello, Sage Katsuyu, can I learn?" Seeing Sage Katsuyu's proactive inquiry, Uchiha Dan suddenly became spirited.

Sage Katsuyu didn't speak but swallowed Uchiha Dan in one gulp.

Uchiha Dan wasn't flustered at all. After entering Sage Katsuyu's body, it felt like being in another space.

The next moment, countless Natural Energy surged towards his body, washing over him like a stream.

Uchiha Dan closed his eyes and felt it carefully. To his surprise, he found that this Natural Energy was incredibly compatible with him.

So, as if guided by an unseen force, Uchiha Dan drew a trace of Natural Energy into his body.

By balancing his bodily energy, mental energy, and this trace of Natural Energy, a wisp of Sage Mode Chakra was generated within Uchiha Dan.

Although it was very, very little, everything felt so natural.

This was Uchiha Dan's own talent, not from Tobirama Senju.

This made Uchiha Dan incredibly excited; he didn't even know he had such talent.

After spitting Uchiha Dan out, Sage Katsuyu nodded with satisfaction and said, "I can feel it, your talent for Sage Mode is very high, and you are very suited to learning the Sage Mode of my Shikkotsu Forest."

"You guy!" Tsunade was depressed upon hearing Sage Katsuyu's words, very depressed.

It was known that Tsunade had no talent for Sage Mode at all, which had always been her greatest regret.

She wasn't sad initially.

After all, the Sage Mode of Shikkotsu Forest was the most difficult to learn among the three great Sage Lands. The only person Tsunade knew who could learn it was Hashirama Senju.

But Uchiha Dan could also learn it.

Why him?

However, she only complained; she was still very happy in her heart.

After all, it was she who proposed to Sage Katsuyu that Uchiha Dan learn Sage Mode, so she couldn't be truly jealous.

Tsunade's mind was solely focused on Uchiha Dan gaining enough self-preservation power so he wouldn't have to face the threat of death again.

Learning Sage Mode meant that this guy truly had the power to protect himself, and soon, he could live openly in Konoha.

Hashirama Senju's experience made Tsunade understand that when a person's strength is sufficient, they cannot be bound by rules.

Such people often create rules for others to follow.

When Uchiha Dan could truly create rules, would anyone in Konoha dare to trouble him?

Thus, Uchiha Dan, who had been stifled for seven years, finally began his journey of cultivation.

And Tsunade naturally volunteered to be Uchiha Dan's teacher.

For the next month, Uchiha Dan would be reverse-summoned to Shikkoku Forest every night.

The method for him and Tsunade to enter Shikkoku Forest was for Tsunade to summon a small slug, ask it to notify Sage Katsuyu, and have it reverse-summon her and Uchiha Dan.

The method to leave Shikkoku Forest was the same as when Naruto left a clone in Mount Myōboku during his battle with the Six Paths of Pain, which was then summoned back to Konoha by Fukasaku.

That is, leave a clone at home first, and at a certain time, the clone would summon the main body back using a summoning scroll.

Over this past month, Uchiha Dan listened to Tsunade explain the principles of various Ninjutsu and her combat experience, while also learning the Monster Strength Technique from her.

At the same time, he continuously experimented with and familiarized himself with the various Ninjutsu he had mastered, and he also cultivated the Sage Mode of Shikkoku Forest, making his time incredibly fulfilling.

On the summit of a high mountain in Shikkoku Forest.

Uchiha Dan retreated rapidly, dodging Tsunade's attacks, while his hands moved like lightning.

Snake--Ram--Monkey--Boar--Horse--Tiger!

The Six Seals were completed almost instantly, so fast that he couldn't even see the hand movements.

As Uchiha Dan took a deep breath, he retreated while puffing out his chest, as if trying to draw all the surrounding air into his lungs.

During this process, the Chakra within Uchiha Dan's body also circulated wildly, with countless fire elements rapidly condensing in his throat.

The next second, a large amount of flame spewed from Uchiha Dan's mouth, quickly solidifying into a massive fireball that flew towards Tsunade.

Where the fireball passed, the air warped from the intense heat, crackling loudly.

Fire Style: Great Fireball Jutsu.

As Uchiha Dan cast his jutsu, Tsunade, who had already sensed it, stomped her right foot forcefully on the ground. The immense force shattered the earth, sending large chunks of rock flying into the air.

Just as the fireball was about to reach her, Chakra surged around Tsunade's right foot, and she powerfully kicked the largest floating rock.

However, instead of shattering as expected, the rock was propelled by the instantaneous burst of power and suddenly shot towards the fireball.

Using the force of her counter-kick, Tsunade landed rapidly.

The moment she touched the ground, Tsunade lightly tapped it with her toes, her feet enveloped in blue Chakra, and shot forward like a cannonball, catching up to the rock.

Astonishingly, throughout this maneuver, the ground did not sustain any damage, unlike what would have happened before.

Monster Strength Technique: Ultra-Precision Mode.

This was a mode of ultra-precise control over the Monster Strength Technique that Tsunade had created over the years, spurred by Uchiha Dan's challenges and inspired by her great-uncle and second-uncle. It was essentially an advanced version of the Monster Strength Technique.

Compared to before, where every movement could cause massive destruction to her surroundings.

Now, once Tsunade entered Ultra-Precision Mode, her energy was almost entirely contained during combat, with virtually no leakage or waste, allowing for perfect control.

Due to the high concentration of her power, Tsunade's movement speed in this mode was also terrifying, practically a Body Flicker Technique pro max ultra.

In Monster Strength Technique: Ultra-Precision Mode, Tsunade possessed the ultimate movement speed, incredible burst power, destructive force, and extreme regenerative capabilities.

Whether her Ninjutsu was flashy or not was completely irrelevant to Tsunade.

All of this happened in an instant.

From the spectators' perspective, the massive rock cleared a path through the flames, with Tsunade following closely behind, narrowly dodging the scorching heat.