The system always wants to send me to the heroine

Huh, I’m a little nervous. Take a deep breath. It’s just a small occasion. It can’t be as exciting as the college entrance examination!

Well, that’s it, now let’s start calculating!

"There are 12 rabbits and 23 chickens, right sir!"

A proud little girl's voice came from the audience, and I quickly and silently withdrew the fingers that were about to be used to count.

Why is this kid’s mental arithmetic so much faster than mine?

"You, who are you?"

The old man was a little confused. What a weird thing happened today. Why was it that a loli answered his question again?

"Wow, this isn't a classroom, how come you're still answering questions quickly?"

I quickly ran to the edge of the ring and reached out to pull up Qiu Qiuya who had already climbed halfway up.

"I'm sorry, this, this is my student, her name is Qiu Qiuya."

I winked at her, hoping that this little girl would quickly apologize to the old man for her recklessness.

"Humph, such a simple question doesn't even need to be answered by you personally, sir. Even I can figure it out easily!"

Qiu Qiuya didn't understand my hint at all. She didn't care about Daxian's face at all. Her little mouth was flat and raised, and she looked very dissatisfied.

"Oh, a good teacher produces good students. Today really opened my eyes. Hahaha. Well, I underestimated your teacher. Please ask the next question."

Phew, fortunately, the old man doesn’t seem to mind Qiu Qiuya’s mischief.

Alas, this competition is becoming more and more difficult to get out of. Even Qiu Qiuya has jumped up.

It seems that if I don't beat this old man, there's no way I'll get away. If I deliberately answer simple questions incorrectly or don't answer them, Qiu Qiuya will definitely not agree. The questions I ask are too simple, and we'll end up in a tug-of-war between us and me.

This is quite entertaining, and the audience will surely enjoy watching it, but now is clearly not the time for me to leisurely do something like this.

There was no other way, so I had to not give this old man any face and beat him here.

Woohoo, but I really, really don’t just like lolita who is competitive!

"Excuse me, have you ever learned the art of cutting a circle?"

I raised my little hand and asked tentatively.

"Of course, this is the great wisdom of our ancient Eastern country, a method used to calculate pi. You have heard of it. How come this question is related to it? Just ask, don't mind me."

The old man smiled gently, as if encouraging me.

Gu, since you know the art of cutting a circle, then, then I shouldn’t be considered as bullying an old man, right?

I really am just asking a question that is a little bit beyond the scope of the syllabus, okay?

After all, it is impossible to give complicated application questions or drawing questions when asking oral questions in this kind of competition, but I have to stump him and give him a reasonable explanation that he can accept based on his knowledge. After much thought, I had to go slightly beyond the syllabus.

"My question is, how do you explain the existence of several right angles within a semicircle?"

The old man was obviously stunned for a moment, and then became a little annoyed.

"Nonsense! How can there be a right angle in a semicircle? There are only two arc angles!"

Phew, he really didn't know. After all, this involves a little bit of modern knowledge, such as calculus.

However, I have considerately replaced the word "proof" with "explanation". It is not a picture like "You already know that 1+1=2, now please try to solve the following high-order polynomial equations", right?

The scene became restless again, as if people were very dissatisfied with the fact that a three-year-old child could answer the questions. Only with the help of the old man's loud shouting did the scene return to calm.

"Well, it's like this. I mentioned the circle division method just now, right? The idea is that if you cut off the four corners of a square with the radius of the circle as the height, you will get a regular octagon. If you cut off the octagon again, you will get a regular hexagon, and so on. But whether it is a regular octagon or a regular hexagon, if you divide it into two equal halves from the middle, there will definitely be at least two right angles on both sides."

I paused subconsciously, just like when I raise a difficult question in class and let the students react and absorb it for a while.

"My friend, are you saying that we should use the method of dividing a circle to continuously divide this regular polygon until it reaches its limit and approaches the circle infinitely, in order to solve this problem?"

Wow, this old man reacts pretty quickly. I nodded and continued.

"Well, if we infer this, even if we divide it to the limit, it will still be the same. If a regular n-gon that is infinitely close to a circle is divided into two halves, there will of course be two right angles. Therefore, the answer to this question is that there are two infinitesimally small right angles in the semicircle!"

I held up two fingers and made a 2, the victory sign.

"Infinitesimal..."

The old man twirled his long beard again and fell into thought.

The timid whispers around gradually became louder, and the host was also a little confused.

From the perspective of the general public, this is completely incomprehensible nonsense. A regular n-gon is just a regular n-gon. What does this have to do with a circle?

I sighed in disappointment.

Well, I have tried my best to explain it in easy-to-understand terms. If you want a rigorous proof, in addition to integration, you can also prove it through the vector of the circle equation.

Well, there is no need to explain these things to them in detail. They are not my students.

Besides, I didn’t come here to win. If you can’t figure this out, then there’s nothing I can do.

But I believe that if this old man is a true sage, he will be able to understand what I say and take his academic research to a higher level. The method of dividing a circle is the first time in human history that the idea of ​​limit has been introduced into the method of mathematical proof.

"Well, if, if you can't figure it out, it doesn't matter. I'll give up now."

Without waiting for the old man who was still in deep thought, I took Qiu Qiuya's hand, and with her, the two of us jumped down from the stands and disappeared into the crowded crowd.

"The winner is still our Daxian!"

Behind me, I heard the host's impatient and hoarse voice.

Oh my goodness, why on earth should I join this boring fight? To be honest, the old man is a powerful figure, but it seems quite uncomfortable for me to bully him with modern knowledge.

Loneliness, I won, and only I know that I won.

"Sir, you clearly won the question just now!"

Qiu Qiuya's face was puffy and she looked very unhappy.

"Hmm? Why do you look at it like that?"

I was a little surprised. Could it be that Qiuqiuya's ability to accept things is better than Daxian's?

"Of course it's because sir is the most awesome one!"

Qiu Qiuya looked up, and little stars flashed in her eyes again.

Um, this kid Qiuqiuya, when did she start to worship me blindly?

Although I am a little happy, I still need to find some time to educate this child and correct him. I am just an ordinary loli teacher and not that great.

Chapter 38: Being kicked out

"Long Aotian, he's not at home?"

After watching the excitement and letting the little girl Qiu Qiuya have her fill, I didn't delay any longer and took her straight to Long Aotian's castle. Unexpectedly, I got such an answer.

"That's right, Miss Li Zhi. The Duke went out early in the morning. You know his hobbies. Even after he became the Duke, they haven't changed at all."

The person who spoke to me was Long Aotian's secretary and housekeeper, whom he brought up from the village. It seemed that he didn't say "I'm going to find a young lady from an alien race" because of the presence of the little loli Qiu Qiuya.

Oh, if that’s the case, then I won’t be able to get Long Aotian’s help to investigate.

This guy is really unreliable. He is really not afraid of kidney overdraft at all!

Fortunately, the butler knew about the slave market and told me its location.

In this way, we will have a direction to look for, and make sure that the rice grains are not bought by anyone.

The little loli Qiu Qiuya looked so eager to try that I couldn't help but react.

The previous ring match at least told me one thing, that is, I must never take risks with Qiu Qiuya, this loli!

This little girl has never seen the world. Not only does she like to join in the fun, but she also doesn't feel nervous at all. She just climbed up on the stage surrounded by a sea of ​​people. Not only was she not stage-frightened at all, she even didn't give her any face at all to the old man who looked extraordinary at first glance.

Should I say that she is really a little loli? She is truly ignorant and fearless.

It's good to be curious, but she has to stay here now!

There's no way. The teacher's ability is limited. There's no telling how dark the slave trade is. I'm lucky enough that I can protect myself. Add to that a loli who's obviously not very courageous but loves to be noisy, and I really can't do it.

Humph, even if you look at me like an animal, I won’t take you there!

Just like that, after forcibly entrusting Qiu Qiuya to the care of the housekeeper, I went to the slave market alone.

The market is very hidden, with only a small door. Without the uncle's instructions, I would not have been able to find it.

"You, what are you doing here? This is not a place to play!"

Just as I was about to enter the door, I was stopped by a warrior sister wearing a helmet and heavy armor. She was very tall and stood guard at the door, not moving an inch.

I was prepared. I touched my waist and raised Long Aotian's badge in a menacing manner.

"Don't show me this scrap metal. Go home!"

Unexpectedly, the warrior sister refused to leave and did not acknowledge my token at all.

"This, this is Long Aotian's token, the Duke's Order!"

Not giving up, I stood on tiptoe and waved the token in front of her eyes.

What’s going on? Even an ordinary soldier can recognize this thing, so why doesn’t this soldier sister recognize it at all?

Doesn't this market dare to hire a gatekeeper with better vision? If it does this, big business will be turned away!

But is it my illusion? Uh, I always feel that there seems to be a hint of anger in the tone of this warrior sister?

"presumptuous!"

With a lazy shout, a fat man walked out.

"Since she is the lord's person, she is an honored guest. Why do you keep her out?"

I proudly put away the sign and quickly glared at the soldier sister.

Humph, that’s what I said, how could anyone not give this thing face?

The warrior sister’s face couldn’t be seen clearly because she was wearing a helmet, but I always felt that her intense gaze was staring at me.

Gu, what's going on? With that weird look in his eyes, I'd better finish my job quickly and leave early.

Well, I must ask Long Aotian to tear down this evil place!

Following the man's lead, I walked into the market step by step.

This place looks small from the outside, but it's actually quite big inside. Unfortunately, underneath all these magnificent rooms, they're making money by exploiting human blood.

"What kind of slave does the girl need? For the Duke's use, or for her own use? For fighting, or for sleeping with her?"

The man in front introduced me to the rooms, where the slaves were displayed like commodities through the windows.

Wow, I feel so sorry for that little Mi Li. She must have to suffer like this! Not only was she caught in such a place and suffered, but even her dignity was completely taken away.

"I want an orc. Um, an orc loli as big as this. Oh, I want to raise it!"

I stretched out my hand and roughly measured the child's height and the pair of animal ears on his head.

"To raise? Okay, I see. You want to raise them for fun, right? There are many people who have this hobby. Unfortunately, we don't have any beastman lolis here. How about taking a look at other races? They're guaranteed to be just as cute."

The man smiled and said terrible things, and his expression never changed.

"No? Impossible!"

I was shocked.

Under my interrogation, the two prisoners clearly told me that Mi Li was bought by the slave traders of the Principality, how could he not be here!

You know, I don’t even know how to turn off my [Charm] effect. In that state, how could anyone keep a secret!

"Oh, sir, how can you be so sure that we will have the goods?"

The man's narrowed eyes covered by fat opened a little, revealing a cold look.

"Sir, it seems that our store doesn't have the goods you want. May I ask you to come in? Doorman, please show me around!"

"Wait, I..."

How come this happened? I haven’t even asked about Mi Li yet!

Before I could finish my words, the soldier sister who was guarding the gate suddenly appeared behind me. She was so fast that it seemed like she had been following us secretly.

Without saying anything, she grabbed my arm and pulled me out easily.

I was so unwilling that I turned around and glared at the fat man who was still smiling.

"Hey, I, I will be back!"