I'm the top student in Conan, but I'm actually an onmyoji.

After the Tsukikage Island incident, Sagawa Yan, Sonoko, and Ran had a good few days of fun in the Izu Islands.

The sunshine in April is not hot enough, but it is warm and warm enough for the three people who came to vacation to play on the beach for a few days.

I have to say that Sonoko has a really good eye for choosing swimsuits, and the swimsuits she prepared for herself and Xiaolan brought many benefits to Yan Sagawa.

After a few pleasant days, I finally returned to Dongdu again.

Only then did Sagawa Yan realize that Sonoko had always been concerned about Cheng Shi.。

“Yan, take it, don't show it at all. "

Sonoko and Xiaolan walked at the front with empty hands, while Sagawa Yan walked at the back alone with a lot of souvenirs bought in Izu.。

“It's really a bit heavy." Sagawa Yan had a big bag in each hand and a big bag on his shoulder. He smiled bitterly.

But thinking about his scum, he still accepted it honestly. What's wrong with helping his girlfriend carry the bag? Exercise is good for the body。

“Say, I suddenly want to buy something...look?”

“All is OK...”

Seeing Sagawa Yan holding on alone behind him, Xiaolan asked worriedly, "Is it too much, Sonoko?"。”

“My mother said that you should be gentle with men and not be humble to anyone. "

Yuanzi spoke eloquently and looked like an expert in husband taming.。

“Um, is that so? "

Xiao Lan smiled awkwardly.

After Sagawa Yan sent the two girls home respectively, he finally returned to the home he had been away from for a long time.。

“Cheng Shi untied his knot and said that he would accompany his father for a while before coming to Dongdu. It was time for me to concentrate on the big fight! "

He is now full of confidence. His happy mood after rest, coupled with the smoothness of his love life and the explosive personality of summoning shikigami, make him feel that everything is under control. It's time to

solve the Kakutani conjecture!

5 hours later

“It’s so difficult. Why do I still find it so difficult even though I’m already at level 2 in mathematics?” Sagawa Yan’s scalp felt numb due to the stuck. No, he had to

change his mind. After making up his mind, he gave up the results of these 5 hours. He

pulled with both hands . For a moment, crumple the manuscript paper on the table into a ball of waste paper and throw it all away。

“We have to start from scratch." Sagawa Yan directly spread out a large white paper。

“The origin of everything”, he wrote on the paper, 3n+1。

“Then there are the latest results obtained by mathematicians in various eras step by step, proving. ”, he wrote h(z3)=h(z^6)+{h(z2)+λh(λz2)+λ2h(λ2z2)}/3z (where λ=e^(2πi/ 3))

Looking at this comparison, Sagawa Yan shrugged. Sometimes mathematics is so unreasonable.。

“Maybe I shouldn't be so eager to equate this function, but I can also take steps to advance them to the next step of conjecture. "

After making this decision, his thoughts changed and he continued to write.。

“If you perform a complex analysis on it, it won't work, it shouldn't be done at this time, you have to perform a transcendental integral function first." As the thought deepened, the distracting thoughts in Sagawa Yan's heart disappeared little by little, and he devoted himself to mathematics with a calm and focused expression. In the world,

the night was getting darker.

Demon Sword Princess looked at Sagawa Yan, who had no idea of rest, "Man is really a strange creature. "

Sagawa Yan feels a little sleepy. Anyone who has done math for 8 or 9 hours in one breath, with his mind spinning all the time, will also feel sleepy. The big paper is once again filled with mathematical

formulas, and the person in charge of calculations next to him will feel sleepy. The small manuscript paper was filled with calculated numbers.

Sagawayan didn't want to stop, so he took out a bottle of energy drink from the system space, drank it and continued to work hard.。

“Just change it here like this, h(z)=h0+h1z/(1/z) and then reversely transform it...”

...

The next day

, with dark circles under his eyes that hadn't appeared for a long time, Sagawa Yan appeared in the class of Class A, the third year of high school.

His arrival caused a sensation. After all, Dalao had not been in the class for a long time after winning the prize for his paper.

Even Ishida came over to take a look and said with a smile that something strange would happen later.

In fact, when Sagawa's guess became a topic of discussion on TV, they already knew that Didan High School could no longer teach him anything.

So everyone started discussing why Sagawa Yan came to school this time.。

“It must be for my girlfriend. I have already heard that she is the eldest lady of the Suzuki Foundation, Suzuki Sonoko.。”

“Oh, men are handsome and women are rich。”

“Ahem, to be fair, the woman is also very cute, but it’s a pity that it’s hidden by her wealth.。”

“That's great. I also wish I had the financial resources to cover up my appearance.。”

“The building is crooked. "

Actually, Sagawa Yan really didn't come to school just for the garden. He found that he was not sleepy at home even after not sleeping all night, and wanted to continue studying.。

“Don't die suddenly because you stayed up late." With this thought, he came to the special sleeping place, the classroom. Just

one minute into the first math class, when he heard Ishida's answers to those simple questions, he immediately fell asleep as he wished.。

“Ishida is honest, you should be more stable." With a satisfied smile, he fell asleep.