I formed the El Cat Investigation Team in Pirates.

If the time before the time travel was included, Xie Wen estimated that he hadn't cried so miserably in more than ten years.

Things in the pirate world are still unreasonable even if they are not devil fruits. Although Xie Wen didn't recall any sad memories after drinking the "medicinal wine", he just couldn't stop crying.

And it's not the kind of crying where you just shed tears, but there is a real sadness lingering in your heart. It can be said that this mushroom is basically a sad version of a negative ghost.

In some ways, this thing is even more troublesome than Perona's Ghost Fruit, because it is not a devil fruit, and even using domineering cannot resist its effects.

However, the shortcomings of this thing are also obvious. It is not like Perona's negative ghost, which will completely lose resistance after being hit.

Even though Xie Wen cried very sadly just now, he still had the ability to catch these little cats that had cheated him and spank them, but he just didn't do it.

After all, he often tricks his cats, and this is a way for them to show closeness to each other. Now that he has been tricked, he will not dwell on it anymore, but will think of a way to trick him back next time.

"Hmm... In other words, its effect is indeed the same as that of the Laughing Mushroom. It seems that my guess was correct. These mushrooms are from the same series, meow."

(=ΦwΦ=)

While nodding his head, Huihara Miao quickly recorded Xie Wen's feelings after "taking the medicine" in his experimental record book.

Although he is playing around, this scheming guy is still very serious when it comes to doing serious work.

As for the Blue Star that was just tricked...

Naturally, I will cooperate with Huibara Cat's research as a competent drug tester.

"Now that you put it that way... it's indeed quite similar. After eating the Laughing Mushrooms, I also feel happy for no apparent reason."

Xie Wen nodded thoughtfully and agreed.

Although the weeping mushroom is a specialty of the Nine Snake Island, there is a similar laughing mushroom in other places. Some islands even use this thing to make a drink called "happy water"...

Well, it is water that can really make people happy.

However, if you drink too much of that stuff, it's easy to develop a mental dependence. After all, the civilians in the world of pirates are in a different state, and everyone knows it, so many people choose to use this kind of happy water to escape reality.

"It's not just the weeping mushrooms," Huiyuan Meowth put away the notebook and pen in his hand, shook his head and said, "There is also a kind of angry mushroom on this island. After eating it, you will have nameless anger... It seems to be suitable for strengthening the demon medicine cat."

Xie Wen: "..."

What is this? The emotional mushroom of joy, anger, sorrow, and happiness?

The species in the pirate world are still as messy as ever.

Xie Wen, who had seen too many strange things, complained calmly in his heart.

……

In the next few days, Haibara Cat did not continue to study the mushrooms found on Nine Snake Island, but instead focused on how to remove the hoof prints of the Flying Dragon on the backs of the three Boa sisters.

Although it is just a crest used by the Celestial Dragons to mark slaves, this thing is very special.

According to Hancock, the emblem was branded on their backs by the Celestial Dragons with a branding iron, which is the same as what Xie Wen saw in the comics.

But Huiyuan Miao told Xie Wen that the mark of the Sky-Soaring Dragon's hoof on Hancock's back actually appeared to be a tattoo-like pattern that penetrated deep into the skin, and there were no signs of burns.

It was just that in Xie Wen's impression, when the Sun Pirates covered the hoof print of the Sky-Soaring Dragon, they also seemed to have used the method of directly branding it...

Maybe this is a tattoo technique unique to the pirate world?

Leaving aside the issue of tattoo technique, what is truly special about the hoof print of the Sky-Soaring Dragon is its stubbornness that cannot be removed.

Huiyuan Miao once tried to scrape off a small piece of Marygorud's skin, but after using angel potion to make it grow back, the scraped skin still retained the pattern of the Sky Dragon's hoofprint, as if her skin was born like this.

"I even suspect that if I wash off the tattoos of the fishmen who were once slaves in the Sun Pirates, I will still be able to see this strange claw mark, meow."

(=vv=)

After some attempts, Huiyuan Miao said to Xie Wen with a serious face.

In other words, if the Celestial Dragons are really determined to get their slaves back, this method of covering them with tattoos won't actually be of much use...

But given the temperament of those celestial dragons, they basically won't do that.

"Didn't you test it on Hancock and the others?"

Xie Wen asked curiously, it was just a guess without any verification, which didn't seem like something a scientific research cat like Huiyuan Miao could do.

"They are too afraid of the Celestial Dragons, meow."

(`w≡`w)

Huiyuan shook her head. "If they knew that covering the tattoo didn't work and I didn't find a way to remove the mark, they would definitely start to get scared again, meow."

"Oh my! Our little Ai is really a good child!"

Xie Wen picked up the kitten and kissed her furry little head fiercely.

"Don't get so close! You stupid Bluestar meow!"

(=`Д=)

Huibara Miao waved his cat fist and started hitting Xie Wen.

It's just that this arrogant little kitten expressed disdain in its mouth, but it didn't use any strength at all when it patted Xie Wen's head with its claws, and its tail behind it was bent into the shape of a question mark because of happiness.

Soon, Huiyuan Miao once again devoted herself to the study of the hoof prints of the Sky-Soaring Dragon, and she also brought Miaoerya, who was not very good at this, together.

Of course, Meowerya's so-called weakness is in comparison with Meowth Haibara, a genius cat who is also a research-oriented cat, as well as talented scientists from the Pirates such as Vegapunk and Vinsmoke Judge.

With the joint efforts of the two genius scientific research cats, their research quickly made progress, and the solution ultimately fell back to the special mushrooms on Nine Snake Island.

What came in handy was the "mushroom that grew mushrooms on its body" that almost killed Luffy and almost caused his second brother to be pulled out in the comics.

To put it simply, it is to use the characteristics of "mushrooms growing on the body" to transfer the hoof prints of the Sky Dragon to those growing mushrooms, and then pull them out directly.

As for how Huiyuan Meow and Meowx did this, and how to ensure that it would not appear on the backs of the three Boa sisters again...

With Xie Wen's limited scientific knowledge, of course he had no idea.

Besides, the physics and ecology of the pirate world are so different from those on Earth that he might not be able to understand them even if he was from the Chinese Academy of Sciences before traveling through time.