The reason why Shi Lei was so happy was because he knew very well what a powerful skill Yin Seal was!

Yin seal is a sealing technique and was first born in the vortex clan that is good at sealing. Its power is that it allows the caster to use the power of sealing to store a large amount of chakra in his body, thereby suppressing and sealing the tailed beast!

After the Senju and Uzumaki clan formed an alliance, a woman brought the Yin Seal to Konoha Village. She was the wife of the first Naruto Hashirama, and she was also the first Nine-Tailed People, Mito Uzumaki!

After Uzumaki Mito's death, her granddaughter Tsunade inherited the sealing skill of Yin Seal, and also carried it forward, creating the sealing method of Yin Seal - the technique of Baihao!

The power of Baihao's Technique is that it can completely untie the Yin seal, freely mobilize and use a large amount of chakra stored in the Yin seal, thus making it possible to launch large ninjutsu and forbidden techniques!

At the same time, as chakra is infused throughout the body, the caster's physical strength, strength, and recovery will be greatly improved. In conjunction with Tsunade's forbidden technique [Creation and Regeneration], even if the injury is severe, it can recover in an instant!

It's a magical skill!

As a leader in the medical field of Konoha Village, Tsunade has set three iron rules for medical ninjas.

[Original: Medical ninjas must never give up treatment before the team member dies!]

[Order 2: Medical ninjas must not stand at the forefront!]

【Item 3: Medical ninjas must never die before any member of the team!】

Many people know these three items, but they don’t know that there is another one based on these three rules, that is, the fourth item—

[Only the medical ninja who is proficient in the art of Baihao and the creation and regeneration are allowed to break all the above regulations!]

How domineering this is!

What an irritating woman is this?

Putting aside Tsunade's personal character, just by being able to say this, we can see how powerful the art of Baihao and the regeneration of creation are!

So when Shi Lei saw that he unlocked the [Silent Seal·Baihao Technique], he would not mention the excitement in his heart.

"As soon as this move is used, you won't have to worry about not having enough mp. Besides, even Yin Seal and Baihao's Technique are coming out, so is the creation and regeneration far away?"

Thinking of this, he wanted to use the Yin Seal to earn experience and level immediately!

But when he saw the skill description, he immediately calmed down.

"Skills say that Yin Seal can open a chakra pool that is equivalent to 10 to 100 times its own mp, but it will forcefully deduct 10% to 100% of its own mp and deposit it into the chakra pool every day, but this choice is not easy to make!"

According to the instructions of this skill, if you choose to open a 10-fold chakra pool, it will have the least impact on yourself, and as long as you use 10-fold chakra volume, you can still turn the situation around.

But Shi Lei was unwilling to give up.

"It's obviously 100 times, why should I choose 10 times?"

You know, the increase of the 100-fold chakra pool is no longer described as "big", it is simply comparable to a tailed beast!

But to obtain such strength, the price required is also very high.

Take Shi Lei for example. He wants to recover all his mps. It is not enough to rely on normal sleep every night alone. He also needs to add five or six hours during the day.

This means that if Shi Lei chose to open a 100-fold chakra pool, he must maintain a lot of sleep every day before the chakra pool is full, and he cannot use mp at will when he is awake.

This is not easy for a ninja who lives in a war-torn period, so Shi Lei returned to his residence and thought about it all day before he made up his mind.

"Ma Dan, if you want to do it, you can be the strongest one. I will choose 100 times the one. At worst, I will use military food pills as food in the future!"

At this time, his mp was almost full, so after making the decision, he released the seal he had just learned about.

"Open 100 times mp chakra pool, seal the shadows - seal!"

As the skill was released, Shi Lei suddenly felt that all his strength was gathering in the center of his body, and his mp began to decrease.

Fortunately, the reduction rate is very slow, which is almost the frequency of reducing by 1 point in two minutes.

Moreover, if you reduce 1 mp each time, a prompt that represents experience will also appear.

【exp5】

Seeing this prompt, Shi Lei couldn't help but smile.

“This experience is really low!”

You know, when he tied bandages to others, he could get 10 experience each time, so the 5 experience this time is the least experience he has gained so far.

But this also made him feel relieved.

"It's second to me, as long as you have experience, and the frequency is still acceptable now, at least it gives me time to recover mp."

Shi Lei calculated that when he was sleeping, he recovered about 1 mp per minute, and now the Yin Seal draws 1 mp in two minutes.

This means that as long as he ensures that he has half the time to sleep every day, the mp he recovers will be the same as the mp he consumes.

The most important thing is that these consumed mps can provide experience, which means that even if he is sleeping and the Yin Seal is still drawing his mps, he will be able to gain experience!

After understanding this, Shi Lei couldn't help laughing again.

"Haha, you can earn experience by lying down. Is this the legendary winner?"

He smiled happily, and the burden brought by the Yin Seal consumption of mp seemed to be lighter at this time.

After laughing, Shi Lei looked at Konoha Ninja walking past the tent again, and couldn't help but feel a little emotion on his face.

"Although Konoha is good, it's an enemy camp after all. I, a fake guy, will be exposed sooner or later after staying for a long time. Besides, I'm now in the 'weak period', so it's better not to waste it!"

Thinking of this, he had the plan to return to Sand Village.

However, it is definitely not possible to leave during the day, so he waited patiently until night, then found a reason to get rid of the Konoha ninja around him and quietly entered the Kawano Kingdom canyon alone.

Because Shi Lei summoned a slug yesterday to perform group therapy on Konoha Ninja, everyone trusted him very much, so his slip-off was also very smooth.

After entering the Canyon of Kawano Kingdom, he carefully bypassed the secret whistle of Akiyama and others, passed through the canyon from another road, and entered the territory of the Land of Wind.

Shi Lei became more familiar with this place, so he successfully passed the area where the Sahidun Village troops were stationed and returned to the previous wounded battalion.

But what he didn't expect was that when he tiptoed into his tent, a flash of fire suddenly lit up in the originally pitch-black tent, reflecting Chiyo's expressionless face.

"Lizard, where have you been going these two days? Why are you only coming back now?"

“Σ(°△°|||)︴”

Looking at Chiyo's expressionless look, Shi Lei's mouth twitched twice, but he couldn't find any suitable excuses, so he could only try hard to squeeze out a forced smile.

"Hehe...that...why would you guess, teacher?"

Chiyo: "(╬￣裣)"
Chapter completed!