"Mermaid Fazhu, Mermaid Sanctuary, Yun Wenjun, what are you and Koizumi-san talking about?"

On the yacht, next to Shu Yunwen, Tsukamoto Shumei and Lori mourned that they were confused when they heard the words of Shu Yunwen and Koizumi Hongzi, and they didn't understand what it meant.

Shu Yunwen turned his head to look at his girlfriend, and then explained with a smile: "The so-called mermaid shelter is a place opened up by the mages of the mermaid clan to protect ordinary mermaids and ensure that mermaids can be passed on. And the mermaid bead is the 'pass' to enter the mermaid's shelter—"

"——This bone bead is actually made from the bone beads in the mermaid's body......"

Shu Yunwen explained simply, Tsukamoto Shumei heard this, looked at the mermaid magic bead in Shu Yunwen's hand and said "ah": "This thing is ...... Mermaid bones?"

"Yes!" Shu Yunwen smiled slightly, and said casually, "For wizards, this kind of treasure made of bones is quite common, isn't that Mary's head in Jundao also a human skull......

Shu Yunwen's words fell, and Loriai next to her suddenly asked, "Why did these mermaids build shelters?"

"Didn't I say it before, it's to protect ordinary mermaids, and let them continue to pass on. Shu Yunwen replied immediately, and then continued to explain the reason, "I also told you before that since the Middle Ages, humans have begun to catch a large number of mermaids, which has caused a sharp decline in the mermaid race. Later, for the sake of safety, the mermaid mage built some mermaid shelters in some places where there were many mermaids, so that ordinary mermaids could inhabit and reproduce......"

“...... This kind of mermaid shelter has a phantom array, and most of them are built in the ocean, ordinary people can't find it at all, and the mermaid gradually disappears from the sight of ordinary people. ”

“...... Nowadays, there should still be some mermaids in this world, but because of the large number of kills in the past and the difficulty of reproduction, the number is indeed not much, and it is ...... if it is close to extinction."

Shu Yunwen explained "Balabala", Tsukamoto Shumei and Lori Ai were confused when they heard it, and Koizumi Hongzi took over the conversation and said:

"According to the clues I got in my notes, there were still a few signs of merfolk activity here two hundred years ago, but they gradually disappeared after that, so it can be seen that the mermaid sanctuary here should have been established two hundred years ago. Also, the mermaid statue in the American shrine on the island of America has been blessed by a high-ranking mermaid mage, and a high-level mage can build a shelter if he is willing to work hard......"

“...... However, it is really difficult for mermaids to reproduce. The notebook said that two hundred years ago there were only four or five merfolk alive here, and now they may be ......."

Koizumi Hongzi said, and suddenly turned his head to look at Shu Yunwen and said, "By the way, classmate Yunwen, since there is a shelter here, then you say, will there be mermaids here?"

"Mermaid Relic?" Shu Yunwen squinted his eyes slightly when he heard this word, and then nodded, "...... It's really possible!"

Shu Yunwen's words fell, turned his head to look at Sumei Tsukamoto and Loriai with blank faces, and explained: "The so-called mermaid relics are that when the mermaid mage is about to reach the end of his life, he uses the secret method of the mermaid clan to shed the tail of the fish, and turns into a human to continue to survive. The fishtail that they shed by a secret method at this time is the mermaid relic! It is mentioned in the inheritance records of our ghost wizards that as long as a human being with mermaid blood, after the age of ten, there is a certain chance to activate the mermaid relic, inherit the fishtail, and become a real mermaid, I don't know if it is really ......."

"It's true. Koizumi Hongzi took Shu Yunwen's words and continued, "It's just that the probability of an ordinary person with mermaid bloodline activating the mermaid relic is only one in ten, if it is a rare twin, there will inevitably be someone who can activate the mermaid reliction and become a real mermaid!"

After Koizumi Hongzi finished speaking, Shu Yunwen let out a "ahhhh

"Of course. Koizumi nodded, "This is what I mentioned in my lineage." I have an ancestor, and I once had a mermaid mage who had a very good relationship, and these are the ...... that mermaid mages told their ancestors."

Koizumi Hongzi said, and Loriai next to her suddenly opened her mouth and asked a very scientific question: "Sorry, excuse me." Can you explain how humans and mermaids have to reproduce in order to give birth to humans with mermaid blood? Wouldn't there be reproductive isolation?"

Tsukamoto Shumi listened to Lori's words, and imagined the body "structure" of humans and mermaids in her mind, which was also a little strange.

Shu Yunwen pouted and said: "Didn't I just say, some mermaid mages will shed their fish tails and become humans to continue to survive when their life span is about to end, and those humans with mermaid blood appear in this way - don't think that mermaid mages will not live for a few months at the end of their lifespan, they will not be able to reproduce, their lifespan is different from that of humans." The lifespan of ordinary mermaids is one hundred and fifty years old on average, and once they become mages, they will live for at least thirty years, and it is not surprising that a powerful mermaid wizard will live for five hundred years. Their 'life expectancy is coming to an end,' and it's normal for them to live five or six years after becoming humans!"

"As for the reproductive isolation you mentioned, maybe it really exists, right? Anyway, as far as I know, as long as a person has mermaid blood, after giving birth to the first child, regardless of gender, will lose their fertility, so mermaid bloodline is basically a single line......

"Really?" Lori's mouth twitched twice, and she didn't ask any more, and once again began to doubt her life—

Well, mermaids turn into humans and reproduce, and there is still this kind of operation?

Damn, this is not about science!!

Koizumi Hongzi suddenly asked again: "Speaking of which, Yunwen-san." If there really is a mermaid shelter here, then I guess there is a chance that we are looking for a mermaid's grave nine times out of ten......"

"Yes, they should all be in the mermaid shelter!" Shu Yunwen nodded affirmatively, "So, if you want to find the immortal grass, I'm afraid the only way to find the mermaid shelter is to do it......"

Shu Yunwen said, his tone paused slightly, then he looked at the mermaid magic bead in his hand, and said with a smile: "...... However, since there are mermaid orbs, it won't be too difficult to find a mermaid shelter......"

"That's just as well. Koizumi Hongzi nodded, then looked up at the black and oppressive sky, "But it's night now, it's a little troublesome to continue searching, let's look for it again tomorrow......"

"Well, that's right. Shu Yunwen echoed in agreement, then looked down at the dark sea, frowned, and said, "Speaking of which, why do these dead people have mermaid magic beads in their hands?

"I don't know. Koizumi shook her head slightly, and then said, "None of this matters. Yunwen-san, let your men come out of the bottom of the sea, and we're ready to sail back......"

"Okay. Shu Yunwen nodded, and Tsukamoto Shumi asked, "That's ...... Yun Wenjun, what are we going to do with the corpses of these people?

"Of course not. Shu Yunwen smiled slightly, and then replied, "There are not only corpses down here, but also shipwrecks, it is not convenient for us to salvage them, just go back and tell the village office on the American Island about the shipwrecks here, and let them come to salvage them." As for us......"

“...... Now let's go back quickly, eat something and rest!~"