Zhou Yu almost petrified to listen to this lesson, hair and hair, estrus?!

What the hell do people here still have estrus? Oestrus?!

Zhou Yu, who was ruthlessly destroyed by the Gate of Three Views, was like being struck by lightning.

It is said that the so-called estrus period comes when the guide is about twenty years old, oh, the sentinels do not have estrus, as long as there is a need, those wild sentinels can come into heat anytime and anywhere--- said the disgusted biology teacher.

Zhou Yu swallowed his saliva: ...... Teacher, you're a man with a story.

Therefore, all guides will try to find their favorite sentinel before this age arrives, and most normal guides will be strongly indoctrinated with this idea when they awaken around the age of ten. Then wait until the estrus is marked by Shun lì, and after the shun lì is marked, the cycle of estrus will become once every two to three months, two or three days at a time, this situation is more pleasing to hear, happy to run.

But if there is a group of "leftover guides" who do not find their favorite sentinels and are marked, then their estrus period will be particularly frequent, usually to half a month, half a month at a time.

To put it bluntly, it's estrus all the time.

Zhou Yu: ......

And because both the guide and the sentinel have pheromones, which are abrasive little goblins, and when they are in heat, the pheromone concentration of the guide will soar a lot, and this rich and seductive pheromone can instantly attract all free sentinels, regardless of the match rate or not, and can completely trigger their wildness.

So this will also cause a certain amount of tragedy, such as waking up, you are matched with a stranger, and it is the final mark.

The most unfortunate thing is that if the other party is a sharpshooter, you may wake up and get pregnant, and in an empire with a declining fertility rate, it is absolutely illegal to have a baby, which means that the road to abortion will be very, very difficult. It is said that in the early days, it would even cause a group of guides to have psychological problems, match the sentinels they don't like, and have to give birth to the children of the rapists, which even caused a series of suicide cases of the guides.

So the empire finally carried out a certain amount of control in this regard, first established a guide academy, protected the guides as much as possible, and taught them a certain way of self-protection, for example, if they really don't want to, they will directly attack the sentry's brain domain, as for whether the sentry can resist it, then it is up to fate, after all, people always have to learn to control their lower body, not to mention that they have to be on the hand, and they should bear it when they kneel.

However, the institute later discovered that it was not possible to keep the guide in heat all the time, so they developed a drug that could delay this "menarche" by one to two months.

But it's just a little bit of time, this drug has a great impact on the guide's body, and may even affect the birth of children in the future, between the empire's birth rate has been decreasing year by year for ten years, so it is absolutely not allowed to have problems in this regard.

So finding a free sentinel to match before adulthood, and both of them have a crush on each other, is a very important and fortunate thing for the guide.

In this way, you can not only prevent those beastly sentinels of freedom, but also get the happy life you want.

When the biology teacher said this, he raised his head and cast a loving gaze at Zhou Yu.

Zhou Yu: ......

He had already been hit before giving birth, although he didn't know which organ in his body could do such a noble thing, but now why is there another estrus period?!

And it is issued once every half a month, half a month at a time?! What if I elope in the future, what if I accidentally have an affair in a small alley?!

Wait, it's said that there is still a good chance that the final mark will be formed? Isn't the final mark a soul mate? The kind in the alley? Soul mate?!

Zhou Yu instantly felt that the world was a bit fucked, although he was a homo and didn't mind being with a man, but that wasn't okay for everyone? Just the kind in the alley, he doesn't want to give him 10,000!

And is this estrus period really so terrifying, can it take away people's reason? Anyone can completely lose their minds?

As an old antique, and an old antique who has seen the dependence of this group of future people on "physique", Zhou Yu silently put a question mark on the back of this article, expressing his disbelief, and felt that the teacher must have made an exaggerated explanation in order to intimidate the students into finding the sentry earlier.

However, he still silently wrote down the main points of this, and then thought about it, and felt that Cyril smelled good, and ...... in the morning It suddenly became thicker at that time, and it should be the so-called pheromone.

With such a high match rate, it's normal for you to smell it before you are an adult.

Thinking of this, Zhou Yu blushed, and began to think about whether to elope in the future, whether to ask him for a temporary mark without delaying Cyril's lifelong event.

It's good to have abdominal muscles, to have good looks, it's good for him, it's ten thousand times stronger than the one in the alley.

Thinking of this, Zhou Yu paused, and then smiled bitterly, not to mention tens of thousands of times, in fact, deep in his heart, this is the best choice at all.

But if he chooses, how many times will he go through that kind of thing the day before yesterday? Thinking of this, Zhou Yu's eyes darkened.

A two-hour class, the biology teacher was very impassioned and painstakingly explained how the guide should love himself, how to learn to keep his eyes open to find the sentinel, and it was also in this class that Zhou Yu knew that in fact, the main brain rarely gave such a high matching number as he and Cyril, and it is common for a sentry to match n guides or even vice versa, not to mention that because the range is too large, for example, a certain daughter/little young master in the capital star matches a certain little soldier on a distant planet, can people marry so far away?

As a result, if the number is not really pleasing to the eye, many times the matching of the whistle direction is still free.

With the confusion of the whole class and the non-stop loving light wave emission of the biology teacher, and then almost at the end of the second class, Zhou Yu received a message from Cyril, which roughly meant that he wanted to ask him to have a meal, and the location was whatever he chose.

The words on the holographic projection seemed to be colder than Cyril's words, almost close to the command, and I don't know if he himself was aware of this, and silently added at the end, "I want to see you." ”。

Thinking about the appearance of Cyril repeatedly considering that he would misunderstand when he sent this sentence, Zhou Yu raised his lips and smiled, a touch of warmth crossed his heart, and when he raised his hand and was about to agree, the girl Xie who had been quiet all morning next to him came up.

She looked at Zhou Yu with bright eyes, "Ah Yu Ah Yu, do you want to go to dinner together?" Oh with my brother! He messaged me to ask for it. ”

Zhou Yu's hand was beaten, Xu Xie's brother, Xu Wei? That little genius who went to class 3A for two years?

Thinking about the amount of time he had left to rub the balls for Cyril to eat, he felt that he really needed the help of an excellent guide now. So Zhou Yu hesitated for a second, then immediately agreed to Xu Xie's invitation, and then sent a message back to Cyril, "I made an appointment with my classmates, let's wait for the evening." ”

The face of the general, who was waiting for his wife in the military headquarters, turned black in an instant, classmate? What classmates? How can there be a classmate who has only met for four hours and then made an appointment for dinner? It's not serious at first glance!

Virginia looked at the general's expression of wanting to go directly to the Guide Academy to arrest people, wiped his sweat and said, "...... Admiral, there should be no sentinels over there. ”

However, Cyril's face still didn't look a little better when he heard this, and he continued to stare at the text message for a while, as if he could directly read through the message.

Then about five minutes later, Zhou Yu was reminded of the transfer of 100,000 yuan from Cyril, with a postscript: Eat more.

Seeing that this person still remembered the number he left last time, Zhou Yu smiled lightly and said, "You too, remember to take medicine." ”

The admiral, who had been cared for by his own guide, was satisfied, his face looked a little better, he sat back in his chair, picked up the small dried fish on the table, ate part of it and kept part of it, and put medicine on his face before he began to continue reading the text.

Xu Xie walked beside Zhou Yu, saw the tenderness flashing on his face, blinked his eyes and asked, "Yes, is it the Admiral?" ”

Zhou Yu smiled, didn't admit or deny it, Xu Xie took him as a default, scratched his hair and said, "Ah so envious, Ah Yu, you have your own sentinel so early, I didn't ......"

"Look for it slowly." Isn't it true that he has been single for more than 30 years in his previous life, and he should not have his own sentinel now.

Xu Xie shook his head and said helplessly, "How can it be so easy, I'm seventeen, my brother is nineteen, and there are no sentinels yet, so I'm worried about him." ”

"Worried about what?"

"Estrus, hey, Ah Yu, you were so serious just now, you won't not understand, right? There's an estrus period around the age of twenty, and it's very troublesome if you don't have a sentinel. Xu Xie opened his big eyes and said seriously, "Even if there is one of the communication sentinels who can be temporarily marked, it is very good." ”

Zhou Yu was stunned and frowned, "There really is...... So exaggerated? ”

Xu Xie nodded violently and said, "Yes, yes, of course there is, you don't know, the empire has been strictly controlled in recent years, my mother said that in their era, there were many sentinels who used the estrus period to forcibly mark the guide, after all, with the final mark of the guide's lifespan can be greatly increased, this is too tempting." And because it is difficult to separate the final marked sentinels, many guides were forced to register their marriages with the sentries they didn't like at that time. ”

Zhou Yu was stunned, thinking that he really couldn't resist, right?

Xu Xie saw that he didn't believe it, and immediately added a lot of examples, from all kinds of situations twenty years ago that could be characterized as "rape/rape cases" in Zhou Yu's eyes but were weirdly legal, to related new drugs in recent years, from the teaching building all the way to the cafeteria, her mouth has not stopped.

Zhou Yu heard it as a head or two, and while slandering this girl's lung capacity is really strong, he wondered what kind of ghost physique this is, could it be that he would really lose his mind? Can't you......

He was a little skeptical, but before he could think about it, Xu Xie on the other end jumped up, rushed forward in three steps and two steps and hugged a boy's neck.

The two of them look alike, that is, compared to Xu Xie's enthusiastic appearance, Xu Wei's facial features will look more delicate and cold, Zhou Yu raised his eyebrows, stepped forward and took the initiative to say hello to Xu Wei, "Hello, I'm Zhou Yu." ”

"Hello, I'm Xu Wei, Xiao Xie She's very noisy, she hasn't stopped all morning, right?" Xu Wei smiled generously at him, and seemed to know his sister well.

"Can you please stop talking nonsense, I didn't disturb Ah Yu's class all morning, okay?" Xu Xie made a zipper movement in front of his mouth with wide eyes, and glared at Xu Wei angrily.

Zhou Yu was amused by her, "Yes, it's quite quiet, I just talked about it along the way." ”

Xu Xie immediately threw a smug look at Xu Wei, who patted her head and led the two of them into the cafeteria with a smile.

It was the first time for Zhou Yu to enter the future canteen, and after entering, he found that the canteen of the Guide Academy was very large and luxurious.

As soon as you arrive at the hotel, you have to accommodate the students of the entire college, and in addition, there are very few students who run out to open a small stove. This is nothing more than in the best guide academy in the whole empire, there are really all kinds of unpalatable nutrients, Zhou Yu looked at the buckets of red, yellow, blue, green, blue, orange and purple thick liquid, and suddenly regretted a little regret that he didn't agree to Cyril's invitation to go home for dinner just now, eating a boiled egg is better than this!

Reluctantly picking out two barrels of nutrient solution that was not too disgusting in color, Zhou Yu returned to his seat and asked depressedly, "There shouldn't be any restaurants around here, right?" ”

Think about it, this thing is the same wherever you eat, and the catering industry is □□ not very developed, at most a few stores are made for some fun.

Xu Wei was stunned after hearing this, "Oh, that, it's relatively rare, there are almost few other planets, and the capital star seems to have it, but the food is the same, but the decoration is relatively ......."

Xu Wei said this, stopped and thought about it, "It's quite suitable for couples." ”

However, Zhou Yu didn't get Xu Wei's point at all, and silently sighed that it was really like this, even if it was over, and then forced himself to take a mouthful of nutrient solution like a knife.

To be honest, the taste of this kind of thing is not strong, and it can barely be accepted, but the taste is really disgusting, the feeling of sticky sticky worms crawling through your throat, Zhou Yu almost got goosebumps all over his body.

And the girl Xu Xie took longer than them, and when she brought her bowl, Zhou Yu suddenly choked in his throat, and the already unpalatable thing slipped directly into his stomach, almost vomiting out directly from his stomach.

"That's ...... Is it really not poisoning? I saw that all kinds of nutrient solutions in Xu Xie's bowl were completely fused together, all kinds of colors, what purple mixed with black, mixed with sauce color, red and messy, all of them were about to form a dark rainbow, and Zhou Yu's eyes were straight.

"No, although the taste is a little subtle, but it is delicious to blend together, Ah Yu, do you want it? I can make you a bowl of eh. ”

Zhou Yu shook his head like a rattle, "Thank you, no, really." ”

I thought that she could still distinguish the subtle differences, and it was delicious to be able to blend together, and her stomach was so strong.

And if Zhou Yu didn't want to eat because he was afraid that he would be hungry in the afternoon, he thought that he would have to ask Chen Lao tomorrow if he could bring some take-out food from the school, this thing really made him eat every day, and he would go crazy one day.

And just when Zhou Yu barely swallowed a small bowl of nutrient solution in his throat, the door of the cafeteria suddenly began to stir, and before Zhou Yu could turn his head, Xu Wei was the first to frown.

Zhou Yu was stunned, turned his head, and saw Zhou Xing walking in, followed by a large number of men and women.

Zhou Yu stared at Zhou Xing for a while, and then squinted, he felt that his "sister" was actually not bad, and she inherited all the advantages of her parents, and her upward eyes were very similar to Mrs. Irene, but they were much younger than Mrs. Irene, and she looked domineering, quite high-profile and beautiful.

The other party obviously saw him too, and there was a little unkindness in his eyes, but she quickly restrained herself, at least when the others looked over, her face had already changed to a pitiful and cautious look.

Zhou Yu simply pretended not to see it, he was still very interested in fighting with girls, especially this kind of little girl who looked arrogant, you know, his actual age can be doubled in Zhou Xing's age, and he really doesn't like to go against this kind of child who is spoiled in a greenhouse.

And guess that Zhou Xing probably won't be directly with him, because after a biology class, Zhou Yu in addition to estrus, he also learned another knowledge point, that is, guides are very precious, in this world, a sentinel with a matching guide to find another guide is to go to a military court.

At Zhou Xing's age, Mrs. Erin's existence can't stand scrutiny at all, so at most they are playing small tricks behind the scenes, and if she really wants her to come up and directly fight against Zhou Yu's hype, I'm afraid she still doesn't dare.

Thinking so, he turned his head and continued to eat the unpalatable nutrient solution.

While thinking about whether there is some leftover for a while, don't be too embarrassed yourself, it's too hard to eat......

But it turns out that sometimes it's really you who don't look for trouble, things come to you, one of the examples is that when Zhou Yu swallowed a mouthful of nutrient solution with a helpless face, Zhou Xing was already standing by his side.