The ancestor who passed through the book became a villain, and his junior sister gave up on therapy.

After teaching the succubus a lesson, Qin Yuan's mind was about to break out, so Feng Liuzi sent her back to the room.

"Qin Yuan, let me ask you something again." Blood Parasitism looked at the person lying on the bed, recalling the conversation just now in his mind.

Tearing her chest open, squeezing her heart, tearing apart her bones and entangling her intestines were indeed the methods of the Blood Demon Clan.

But...how could the Blood Demon King be so big?No, how could he have a dick?

If he had, how did I get here?

The Blood Demons are made of blood, and they can't produce anything else except blood, so their breeding methods are also different from other races.

If they want to have children, the male blood demon's partner must stay in the female blood demon's body to replace the essence of the Acacia.

The simple explanation is that for blood demons with children, men are eunuchs to other demons, but normal demons to their own wives.

So...what's going on?

When her father died, Blood Parasite was still on the front line. When she came back, the body of the Blood Demon King had been destroyed.

Of course, even if it wasn't destroyed, as a daughter, she couldn't possibly look at her father's things.

"Qin Yuan, Qin Yuan." She shouted a few more times, but Bai Mao didn't move at all, as if he was asleep.

"Don't sleep yet. I'm going to ask you something, and then you can go to bed after asking me something." Blood Parasite was a little anxious and began to tighten his clothes again.

Qin Yuan opened his mouth unconsciously and straightened his waist slightly.

But the next second, white and purple fire bloomed on her body, carrying a black arc.

"!!!"

"Qin! Qin! Qin! Yuan! You! You! You! Yes! Dog! Come on!"

The killing clothes returned to the loose mode, and the blood parasite was emitting black smoke. Before she could recover from the electric shock and fire, silver light appeared on the sleeping person's skin again.

If you look closely, are they formation patterns?

"Fuck! Wait a minute! Wait a minute! I'll ask tomorrow! Can't I ask tomorrow?"

No one heard the blood parasite's cry, and then she appeared in the classroom?

There is another paper in front of me, the title is - Riemann Hypothesis Hypothesis...

"!!!"

"What is this! What is this ghost drawing talisman!" She was confused, not only because of this paper, but also...

Does she have a human form?But where did my hair go?

She had seen human phantom formations before, but this was the first time she had seen such a strange phantom formation.

"Da da…"

The sound of high heels hitting the floor, before she could think about it, Bai Mao, dressed in professional attire, pushed a few stacks of books on a trolley and stopped at the feet of Blood Parasite.

It says nine years of compulsory education in mathematics?

"This is an open-book exam. Students can read the materials if they don't understand." After saying this, Qin Yuan turned and left. Blood Parasite wanted to chase but couldn't get out. She had no choice but to sit back and break the formation obediently.

"That's it? How cruel did I think it was? You were waiting for me to break out of the formation." Blood Parasite didn't do the test paper right away because she couldn't understand it, so she picked up the first-grade textbook and started reading.

There must be a law to make it fantasy, and she thought the law should be in these books.

“1+1=2、5-4=1就这？就这？先算括号里的，这也没难度啊？”血寄生非常飘的又拿起初中数学课本。

"???"

"Why is there a ghost symbol here again? Why is this number with a 2 on its head? Is this its child?"

"That's not right, why are you doing this to someone else again!"

"Your circle is so chaotic!"

The blood-parasitic eyes began to spin in circles like mosquito coils, and finally he honestly picked up the first-grade textbook again.

"Be down-to-earth, be down-to-earth, and eat a fat blood demon in one bite. I'll take my time and don't rush."

Just like this, I don't know how many years have passed, and the blood-parasitic flat head has turned into long hair reaching the waist. It turns out that 9 years have passed since I left Qin Yuan.

"call!"

The girl stretched herself and finished reading the last book of nine-year compulsory education mathematics.

"I have broken through the secrets of mathematics. Now it's time to go out and slap Qin Yuan in the face." Blood Parasite picked up the initial test paper again with confidence.

This time she understood, but...

She didn't recognize all the numbers added together!

"How is this possible! This must be a trap set by Qin Yuan. Calm down! Calm down! Blood Parasite, think carefully about what you have learned before. This question is not difficult."

She stared at the Riemann Hypothesis hypothesis, one second... one minute... one hour... one day... one week... one month... one year...

"I……"

The pen in Blood Parasite's hand dropped, and crystal tears gathered in her eyes.

"Qin Yuan, I really can't figure it out!"

·

At noon the next day, a certain white hair woke up from sleep.

"Huh? Why did my magic array get triggered?" She looked at the light coming from her body and slowly asked a question?

[Note: The blood parasite attacked you at night last night and accidentally brightened your phantom formation. It was your exam phantom formation. 】

"!!!"

"Damn it! She stayed in the exam magic array all night!" Qin Yuan quickly closed the magic array.

Then he saw the body-killing clothes twitching at a strange angle, as if he was crying while hugging his head.

"Uh...are you okay?"

Hearing the sound, Seisheng Yi trembled violently, then tightly wrapped the former and pushed him down on the bed.

"Relax..."

"Qin Yuan tell me! Please! Tell me what the answer to the Riemann Hypothesis is! Please!"

There was a cry in her voice, but it was more of a hysterical breakdown.

"Ah this..."

[Note: Xiao Yuanyuan, look at how hard this child is crying, just tell her the answer. 】

Qin Yuan: "..."

Qin Yuan: "As long as I knew the answer, I wouldn't have been able to write a novel in my previous life."

"Just tell me!"

"Alas..." Qin Yuan sighed, being pestered by her like this was not an option, so he patted the hem of his clothes:

"Let go of me first and listen to me."

As if eager for the answer, Blood Parasite untied his white hair very obediently, like a primary school student listening to a class?

Qin Yuan threw the messy thoughts out of his mind and cleared his throat: "How much do you know about mathematics?"

"I can do all the questions in the book you left behind."

"???"

She naturally knew what she had left behind, but the question now was, did Blood Parasite teach herself the Plenary Session without a teacher to teach her?

I bet you still have the attribute of being a top student?

"That's it, then I'll test you with the debut question..." Qin Yuan thought for a moment: "There are five chickens outside the pot, three of them have been stewed, how many are still outside the pot now?"

"Huh? Two? Are you insulting me?"

"No, there's no chicken outside the pot."

"???"

Old God Qin Yuan was there with a serious look on his face: "Do you think that if an enemy you can't fight kills three of your own clan, will you still stand there stupidly? You must have run away."

"My dear, the waters of mathematics are very deep. You can't grasp it now. I'll tell you the Riemann Hypothesis after you fully understand it."

"Are you...sure it's the depth of mathematics?"

"Aren't you deep in the water?" Blood Parasite's hair exploded, and he bared his teeth and claws to wrap up towards Qin Yuan.

"Nice guy~"

It happened that the door of the room was pushed open, Qi Qing held the door frame and twisted herself into an S, but the scene on the bed...

"Uh... the good guys are busy... are you having some perverted fun?"

Qin Yuan: "I'm not!"