Abe's family mansion, second floor.

Tsunade got up from the bed, draped the green coat he had at his side, lit the oil lamp at hand, and walked out of the room with the oil lamp in hand.

In fact, from night to now, Tsunade hasn't slept much.

Because Tsunade has been thinking about the results of testing Abe's body with chakra during the day.

Tsunade said at the time that Ishitaro Abe's body was not sick, and in the strict sense of the word, Tsunade's diagnosis was not wrong.

From a medical point of view, illness is defined as a deviation from the normal health state of the form or function of a body's tissues or organs.

And when Tsunade examines Ishitaro Abe, Ishitaro's body does not fit into this traditional sense of illness.

Because Abe Ishitaro doesn't have any human organs in his body at all!

Through Chakra's detection, Tsunade did not find any human organs in Abe's body, including the heart, lungs, intestines and stomach, which are the most basic human life-sustaining organs.

As long as it is a human being, whether it is an ordinary human or a ninja, as long as it loses these organs and there is no substitute, it is difficult to call it a living person.

But in fact, Abe Ishitaro can still talk normally, and from the outside, he is still carrying out activities close to normal people.

Just a little weird and sluggish.

Not only that, but Abe Ishitaro's body doesn't have these organs, but it's not empty either.

During Tsunade's detection, there was some kind of fungus-like stuffing in Abe's body.

It is not known what the specific fungi are, and how these fungi enter Ishitaro Abe's body and maintain various bodily functions normally.

Tsunade, who has studied all sorts of strange cases in medicine, has never seen anything like this.

In short, Abe Ishitaro's body is full of secrets, and Tsunade does not dare to jump to conclusions.

If the situation allows, Tsunade would like to study Abe Ishitaro with his own hands.

But Abe Heiji certainly couldn't allow his father to be dissected when the cause was unknown.

And even if Heiji Abe allows, Tsunade's own phobia does not allow it.

However, this does not mean that Tsunade has to give up the treatment of his old friend, Tsunade's plan is to take advantage of the night to conduct a more detailed physical examination of Abe Ishitaro's body.

This time, we must find a way to find out what the fungus filling hidden in Ishitaro Abe's body is.

Except for Mute and Azuki's room, Tsunade pushed open several other rooms on the second floor to check, but found no one living in it.

So Tsunade went to the first floor to look for it.

Searching back and forth on the first floor with an oil lamp in hand, Tsunade still didn't find Abe Shitaro anywhere.

Not only that, but Abe Ishitaro's son, Heiji Abe, and the male and female maids of the Abe family are gone.

All of a sudden, all of this family is gone?

This made Tsunade feel a little weird, it was already the second half of the night, and there should be no reason for the people of the Abe family to go out at this time.

When I came to the hall, the small wall lamp in the corner of the hall was the only one lit, and this was probably the last place where Abe's family stayed before leaving.

Tsunade walked over and saw the easy chair that Ishitaro Abe had been lying on during the day.

At this time, there was no figure of Ishitaro Abe on the easy chair, and only a blanket was left on top of the easy chair.

But on the two armrests of the easy chair, Tsunade found some white crystals.

Tsunade dipped some of them on the tips of his fingers and took a sip, revealing that they were sugar.

For some reason, these powdered sugar would spread across the armrests of the easy chair.

Not only that, but Tsunade found that there were some white powdered sugar scattered on the low wooden cabinet opposite the easy chair.

Tsunade walked over to the low wooden cabinet, opened the door, and lowered himself to find out what was inside.

Groping inside, Tsunade suddenly touched something metallic and had a cold surface.

When I took it out of it, I found that it was a small box with a metal disc on top, and the box did not have a lid, so it could not be opened.

In addition, Tsunade found a device with two resembling small camera lenses on top, and a wooden box that appeared to have various small parts built-in.

Each of these three objects has a wire with three different shapes of latches at the end of the wire, which are square, circle, and triangle.

"What are these things?"

Tsunade looked at these three things curiously, and felt that these three things seemed to be some kind of device accessory, judging from the three bolts of different shapes, they should be used together, but I don't know what they are for.

When did Ishitaro Abe become a hobby of collecting these strange things?

There was a lot of space in the low wooden cabinet, and in order to avoid missing it, Tsunade put the oil lamp inside again to see if there was anything else.

In the deepest part of the wooden cabinet, the glow of an oil lamp shone on something with a metallic sheen.

Tsunade stretched out his arm, and finally took the thing out of its deepest depths.

But when Tsunade put this thing in the light and looked at it, he was almost startled.

Because this cylindrical thing actually contains a brain inside!

Tsunade saw the looming brain in the thick green liquid, and judging from the structure, this was not a specimen of a small animal brain, but a real human brain.

And it's a human brain with distinct features.

On the cerebral cortex on the right edge of the frontal lobe area of the brain, there is a distinct wound, which is a ×-shaped wound that can only be left by surgery.

And Tsunade just knew where this wound came about.

Because this is the wound I left behind when I had brain surgery for Ishitaro Abe!

Brain surgery is the most advanced medical surgery because the structure of the human brain is so complex that it is difficult to find a second person who can perform this kind of surgery, even if it is a minimally invasive surgery performed on the surface of the brain like Tsunade.

So Tsunade is sure that the brain in front of him belongs to Abe Ishitaro himself.

And Abe Ishitaro's brain has completely lost its flesh pink, showing the original gray color of the brain, indicating that the brain has been away from the human body for a very long time, at least not within a few hours.

Holding back the surprise in his heart, Tsunade recalls all the things that happened during the day.

Who was the person I was talking to during the day?

Ninjas who use transformation techniques?

No way, if it's a trick like the transformation technique, which uses chakra, it won't be able to escape my eyes at all.

Transfiguration?

But is there really that kind of seamless disguise?

Even if the lighting environment in the room is extremely poor, it is absolutely impossible to hide the close Tsunade with the disguise technique.

Since the skin of the transfigurant himself and the human skin mask are stacked on top of each other, the disguised face will have a double or strange concave structure at the corners of the eyes and inner canthus, but Tsunade does not notice any problems when he looks at the corners of Abe's eyes during the day.

Moreover, the most difficult problem to overcome is the posture, and it is difficult for the transfigurant to imitate the posture of the transfigured.

If it's disguise, won't the maids and maids who get along with Abe Ishitaro day and night find out?

So that Ishitaro Abe...

Who exactly?