I'm in Naruto, but the system says I'm in One Piece.

Reaching the southeast of the Land of Rivers means that we are quite close to the Land of Fire. Although we may still encounter enemy ninjas, we will not have to be as vigilant as before.

Of course, after a long period of adaptation, Hoshino Yuu also got used to activating Observation Haki, and everything within a few kilometers around him was within his perception range.

Near the border of the Land of Fire, the environment was lush and green, with blue skies and white clouds, making Hoshino Yu want to lie down there for a while.

After walking for a while, I washed my face in a stream I found not far away, and the fatigue in my body dissipated a bit.

After visiting the border of the Land of Wind, my skin feels much drier.

"Speaking of which, is that kind of mission considered a B-rank mission? There are at least several Jonin guarding Luoxia Village, and dozens of Chunin and Genin as well. It could easily be an A-rank mission, right?"

Hoshino Yu took the mission token out of her inventory, examined it for a moment, and then put it away.

The task is now complete. I'll report back on the details later. I should be able to level up my task.

But next we need to find out the exact location of Leixia Gorge.

"Since I haven't been able to sense it with my Observation Haki yet, that means the location of Thunder Gorge is at least several kilometers, or even tens of kilometers away..."

Hoshino Yu surveyed his surroundings and, noticing the dense mountains, immediately pulled out a map.

After comparing the map with the environment and estimating his approximate location, he looked at the location of Leixia marked on the map.

After estimating that he was still about ten kilometers away from his location, he put away the map and then dashed off towards the direction of Leixia Gorge.

Once they reached the depths of the mountains, Hoshino Yu stopped and looked up at the massive, cloud-shrouded canyon before him.

The canyon walls are steep and sheer, overlooking a rushing river valley. The area is filled with moisture and shrouded in mist, with occasional lightning strikes amidst the dark clouds. A simple wooden walkway is also set up along the edge of the cliff.

"According to the records in the Ninja World Geological Survey, there is a special substance in the Raikage that makes the cliff walls rich in conductive minerals, making it easier for lightning to strike, which is why a natural lightning field is formed."

"This saves us most of the time. If we had to sneak into the Land of Lightning, I don't know how much more trouble that would have caused..."

Boom—

Boom—

Several thunderclaps exploded, and even before Hoshino Yu had set foot in the canyon, he was still shaken and felt his scalp tingle.

Looking at the scene that resembled a natural disaster, Hoshino Yu couldn't help but swallow hard.

Although being elementalized would likely prevent one from being struck by lightning, anyone would still feel uneasy in such a situation.

Hoshino Yu quickly put himself into an elemental state, and only felt a little relieved when the surrounding natural energy slowly flowed into his body, though it also surprised him.

He wasn't sure if it was because of the Thunder Gorge, or because it was the first time he had channeled natural energy into his body after transforming into his elemental form.

However, after his first attempt, he did feel that his physical attributes had improved.

But at this stage, there is no guide at all. He doesn't know what it means to combine natural energy, physical energy, and spiritual energy in a 1:1:1 ratio, nor does he know what unexpected things might happen.

We can only take it one step at a time.

After he was ready, he threw everything he had except his pants into the system inventory to avoid losing everything when the lightning struck.

There were still more than seven days left before the mission submission deadline. Hoshino Yu planned to stay here for four or five days and then go back just before the mission deadline.

Firstly, it would allow me to cultivate for longer, and secondly, when the time comes, I could say that the mission was arduous and play the victim.

Furthermore, traveling from Konoha to the border of the Land of Wind would take at least several days round trip, and returning too early would arouse suspicion.

As they ventured deeper into the canyon, Hoshino Yuu could clearly sense that the surrounding lightning-based natural energy was becoming increasingly concentrated, likely related to those special minerals.

If you're not careful while training at Mount Myōboku, you'll turn into a toad or a stone. If you're in Ryūchi Cave, you'll turn into a snake and get eaten. So, is lightning simply extinguished by the high temperature?

Hoshino Yu stood in the canyon and began to look out, thinking of choosing a spot on the highest peak, where he would be more likely to be struck by lightning. At the same time, he unleashed his full Observation Haki.

"There doesn't seem to be any trace of summoned beasts within a few kilometers," Hoshino Yu thought as he moved nimbly between the canyon walls and leaped upwards. "Then I'll start training first."

Upon reaching the highest peak of Leixia Gorge, he saw that the surrounding area was charred black, clearly marked by lightning strikes. He immediately sat cross-legged and carefully sensed the rich natural energy around him.

Boom—

Another thunderbolt struck, landing not far in front of Hoshino Yu, startling him and making him tremble.

However, as lightning continued to strike, he gradually adapted to the sudden fright within half a day.

Sometimes the thunder is so loud that it makes my head buzz.

For two consecutive days, apart from meals and occasional rest, Hoshino Yu spent his time cultivating on this mountain peak.

Besides the body becoming more adapted to natural energy, there have been qualitative changes in the development of elementalization, the mental network formed by combining with Observation Haki, and physical constitution.

He had been struck by lightning before and knew what it felt like.

Unlike the training at Mount Myōboku in the original work, after undergoing "electrotherapy" in his elemental form, he discovered that as long as he had too much lightning-type natural energy in his body, he could simply release the excess electricity.

This led him to develop other skills: Thunder Tiger with 40 million volts, Thunder Dragon with 60 million volts, and Thunder of 90 million volts.

The first two are relatively easy to develop, as they are much simpler to develop with Thunderbirds and Thunder Beasts. However, Ten Thousand Thunders combines with one's own abilities in the raging weather of Thunder Gorge to create an ultimate AOE damage that can cover the entire area and indiscriminately blast enemies.

It's currently impossible to control precisely, and releasing such a wide-area attack on the battlefield could easily result in friendly fire.

It can be used to commit suicide when there is no other way out, but it is not a problem when fighting against tailed beasts.

As for the development of immortal techniques, although Hoshino Yu has been able to gather a considerable amount of natural energy within his body, it feels like something is missing.

Naruto mastered ninjutsu in seven days, but Hoshino Yu said he didn't have that kind of talent, and that being able to master it within a few years would be considered exceptionally gifted.

Two more days passed, and with less than three days left before the task was to be submitted, Hoshino Yu, who was sitting cross-legged on the highest peak of Leixia Gorge, decisively opened his eyes, realizing that there might be no progress in the development of immortal techniques in the short term.

"Phew~ Although I only cultivated for four short days, the value of those four days is truly outrageous."

Hoshino Yu felt the surging, almost overflowing chakra within her body and couldn't help but sigh repeatedly.

That's normal. Who among normal people gets struck by lightning while cultivating?

He's the only one left.

The lightning repeatedly washed over his body, clearing away impurities, old injuries from his training, and blockages in his chakra meridians, while also strengthening his meridians and breaking through bottlenecks.

Now his chakra is both violent and refined, flowing smoothly without any stagnation. Not to mention, his use of the Rumble-Rumble Fruit has reached a new level.

In addition, the development of the MindNet has also made new progress. Once activated, it can completely cover an area of ​​about ten kilometers within one's perception.

......

Chakra level: 3.1 (medium)

【五维：力2.1/速2.8/体3.3/精6.4/印1.2】

Chakra Properties: Lightning, Water, Fire, Yin, Yang

......

[Assignable attribute points: 0.4]

Seeing that his attributes had almost doubled and become "medium", Hoshino Yu felt happy, even though he didn't know how many Kakashis he had.

This group of people who came out to do quests and "incidentally" cultivated immortality techniques have really made a fortune.

Without this lightning tempering, I don't know when I would have gotten such an attribute panel.

Just then, as Hoshino Yu stood up, he suddenly sensed a huge figure rapidly flying toward his location within a range of about ten kilometers.