"Thank you so much, Hanyu-kun."

Smiling at the grateful patient on the bed, Feng walked out of the room and looked at the sky outside.

Is it already night, and it's been a busy day.

However, it is not without gains.

He touched the contents of his bag and smiled at the corner of his mouth.

"Feng, you go back first, and then leave it to me." A deep voice came from behind him, and Feng knew that it was Dr. Akita who had come to change shifts.

"Okay, then I'll bother you next." Feng replied politely, and then walked towards his residence.

Looking at the figure that disappeared around the corner, Dr. Akita felt a sense of relief.

"What a good junior."

Back at his residence, Feng took off his white uniform and took something out of his bag.

It is a small glass bottle with two characters on it, two Chinese characters.

Swift escape!

And in the bottle, there was a blood-red liquid, from the blood of the injured ninja just now.

"Swift Escape, which can greatly increase speed, although the ability is not particularly perverted, but the potential seems to be good."

With that, Feng walked over to his bedside, opened his ninja bag, and put the glass bottle inside.

And in his bag, there were already more than a dozen identical glass bottles, which contained the blood of various Blood Inheritance Boundary ninjas.

The Ice Shield of the Mizuki Clan, the Bone Vein of the Kabaya Clan, the Writing Wheel Eye of the Uchiha Clan, the Hyuga Clan's White Eyes, the Arashi Clan's Desert, and the Boiling Escape......

These were all taken from those injured ninjas in the month he had been in the Thunder Trial Ground.

Purpose...... Naturally, it is reserved for later research.

If you want to study the evolution of the human body, then studying these Blood Inheritance Limit Ninjas is essential.

Although their body structure looks the same as that of ordinary people, the subtleties are very different.

Feng actually wants to study their bodies directly, but ...... Human experimentation was forbidden in the village.

So Feng Ye can only take some blood and see if he can start with genes.

Speaking of which, it's been a month since Feng came to the Thunder Trial Ground.

In a month's time, Feng had already roughly figured out the trial of thunder.

The Trials of Thunder is a rich continent that is now divided into three regions.

One is the resource area, which is also a beast-free area, where all the beasts are killed and slaughtered, and the land is planted with all kinds of food.

The area of the resource area is huge, almost the size of half of the ninja country.

The second area is the trial ground, which is a special area set aside by the previous ninjas.

There are some fierce beasts of average strength in the trial ground, which are used to allow the new generation of ninjas to conduct trials, so as to improve the survival rate of the forbidden land.

The area of the trial ground is not large, equivalent to the size of the only ninja village.

The third area is the Unknown Zone.

The unknown area is also an area that is still being explored, and this area has too many powerful beasts to control the ninja village, so no one knows how big it is.

The place where the seal is located, between the trial site and the unknown area.

In this area, there is a ninja legion of 100,000 people, and the number is the third legion of the Hope Legion's Thunder Trial.

The number of ninjas in this legion has reached 100,000, of which the lowest strength is also the middle ninja level, the number of upper ninjas and elite ninjas, and there are more than 30 shadow-level powerhouses.

In addition to the Third Legion, the Thunder Trials also includes the First Legion and the Second Legion.

The 150,000 men of the 1st Army are stationed in the resource area, and their mission is to secure the resource area.

The 2nd Legion, 60,000 men, is stationed between the resource area and the trial site, and is tasked with the security of the trial site.

The mission of the Third Legion is to explore uncharted areas.

Feng was assigned to the Ninth Regional Hospital of the Third Army Medical Corps because of his excellent medical ninjutsu.

"In other words, there is only one month left before the three-month deadline for the chief student assessment."

In a blink of an eye, two months have passed, and Feng still still hasn't figured out what the minister's assessment of him is.

"Trouble, it's the last month, and I don't know if I can participate in the final chief student evaluation." Thinking of this, Feng sighed helplessly.

For this unknown chief student assessment, Feng is really headache.

In fact, the chief student is really not a must-win for him.

Cultivation resources are important, but for the seal that can open the twelve orifices in the body sooner or later, the importance of cultivation resources is relatively not so high.

The reason why I want to become the chief student is because of the forbidden technique that the chief student can choose.

As a member of the Three Nothings, and in this world that has completely changed, the only way to contact the forbidden art is to be the chief student.

If you give up, it's too much of a loss.

"Hey, I'm so unlucky that I encountered the assessment reform. If it's still the strength quota like last year, it's over, so why bother with it. Sighing again, Feng planned not to think about it anymore.

It's useless to think about it anyway, just let it be.

"But those fierce beasts are really ferocious, no wonder the village has not completely controlled the Thunder Trial Land after so many years." Thinking of the wounds on those wounds, Feng couldn't help but shudder.

As a member of the Third Legion's medical unit, the injuries Feng came into contact with were the kind of people who were extremely injured and had just been lifted out of the unknown zone.

It was also because of this that it was so easy for Feng to collect so much blood from the Blood Inheritance Limit.

And judging from the wounds of those injured ninjas, even if Feng hadn't seen the beasts with his own eyes, he could imagine how ferocious the beasts they encountered were.

Speaking of fierce beasts, Feng thought of psychic beasts again.

In the original book, there is no such thing as a fierce beast, only beasts and psychic beasts.

Although the beast is powerful, it has no wisdom to speak of.

That is, they may have evolved from the beasts of the old times as a result of the surge of natural energy.

And what about psychic beasts?

In particular, the psychic beasts of the three holy places, the toad of Miaomu Mountain, the snake of Longdi Cave and the slug of Wet Bone Forest.

The beasts of the old era could all evolve into fierce beasts due to the surge of natural energy, so what would happen to the three holy land creatures that could absorb natural energy themselves?

Feng had consulted a lot of information for this, but there was no clue at all, and the psychic beasts of the three holy places seemed to have completely disappeared from the ninja world.

Not to mention the psychic beasts of the three holy places, even the other psychic beasts seem to have disappeared collectively.

"Alas, the broken world is really too annoying." Feng thought about it and couldn't help but sigh deeply.

"Forget it, I don't want to. I'm going to collect some herbs tomorrow, and I hope I don't meet any beasts. Muttering, he sat down and closed his eyes.

"Solution!"

"Hiss~" A strong feeling of exhaustion came, making Feng couldn't help but gasp.

Then, he began to sort out the extra information in his mind.

It's impossible not to use the plug-in of multiple shadow clones.