Eight o'clock in the morning, Didan High School.

In the classroom of Class B of the second grade, more than half of the students sat in their seats and flipped through the books, and the rest of the poor students who gave up the treatment gathered in the back row of the classroom, discussing Shu Yunwen's "great achievements" yesterday.

Suddenly, the classroom door opened, and a figure walked in.

The students who were lying on the table and studying hard all looked up, and the poor students in the back row quickly returned to their seats, and then greeted in a messy manner: "Hello Kato-sensei!"

That's right, the one who just walked into the classroom was the homeroom teacher of Class B of the second grade, Kato.

Kato stood on the podium, still with his face on the floor, and looked at the students below seriously, "I'm very happy to see that you are all studying seriously, but the exam will start in half an hour, don't you think it's too late? If you usually work hard like this, you won't be so busy now......

Kato taught for a few minutes, then raised his hand and looked at his watch and said: "It's early eight o'clock, the first mathematics test of this national mock exam will start at half past eight, and enter the preparatory state at eight and fifteen, please adjust your mentality and get ready for this important exam!"

When Kato said this, his eyes fell on Shu Yunwen's empty seat again, and he frowned and said, "...... Where's Shu? Didn't he come today?"

Listening to Mr. Kato's words, Sonoko immediately raised his hand and replied, "Mr. Kato, Lord Yunwen, he has important matters to deal with, so I'm afraid I won't be able to take the national mock exam!"

"What? can't take the national mock exam?" Kato-sensei's brow twisted into a pimple, "...... Shu, really, what the hell is he doing? Is he still like a student?"

Teacher Kato muttered a few sentences, turned around and walked out of the classroom, Xiaolan also closed the history textbook, turned her head to look at the garden and said, "Garden, look at Teacher Kato's appearance, he seems to be very angry......

"What about being angry? He can just be angry...... Yuan Zi pouted absently, then raised his hand and looked at his watch, "...... Speaking of which, it won't be long before the exam starts, why hasn't Yoon-man's friend come yet......"

As he spoke, Yuanzi took out his mobile phone from his pocket and sent a text message "Da Da": "Lord Xiaodu, when will you arrive?"

Not long after Sonoko sent the message, he received a reply: "Wait a little bit! I just passed by a store and found that their home appliance store here was actually playing Mr. Satan Onizuka's concert highlights, and I was a die-hard fan of Mr. Satan Onizuka, so I rushed over after watching it - it would take about an hour or more!"

Looking at this reply, Yuan Zi let out a "uh", and the corners of his mouth twitched-

Die-hard fans of Satan Onizuka...... God is a die-hard fan!

By the way, aren't you a friend of Yoon-sama?

As a friend of Lord Yunwen, you chase a yarn star?

Yuan Zi complained frantically in his heart, and replied with a "da-da-da" in his hand: "Okay, then you can watch slowly." Our first math exam starts at half past eight, so you just have to arrive before half past nine and leave half an hour to help me!"

"Okay, no problem. ”

Kaneshiro Mado replied with another message, and after Yuan Zi saw it, he put up his phone and pouted-

Forget it! Anyway, her goal is to cheat, and it's enough to set aside time for cheating.

But then again, do Yunwen-sama's friends know how to do math problems? If not, who should copy it?

Kyoko's math score seems to be the best, Nae's is also good, and Xiaolan's will also be ......

Well, for the sake of the insurance period, it's better to mix it up!

......

"Okay, I got it. ”

In Yonehana Town, on the moving car, Wataru Takagi hung up the phone after saying "uh-huh" twice, Conan immediately turned his head to look at Wataru Takagi and asked, "Officer Takagi, how is the investigation by the police?"

"The police have searched all the big baseball stadiums and have not found any bombs. In addition, we searched all the trains that pass by Minami Kabido Station, and we only found some fake bombs......" Wataru Takagi said, yawning profusely, and then reached out and patted his head.

“...... Speaking of which, Conan, before you know it, I've been busy with you all night, you must be tired too, ......right? You definitely can't go to school today, so I'll send you back to the detective office to rest......"

"Uh...... No, ......" Conan smiled, "...... Well, I'm not tired......"

"Really, if you don't sleep all night, how can you not be tired! Don't worry, our police will definitely catch that bombardment! I'll send you back!" Wataru Takagi reached out and touched Conan's head, and then continued to drive, Conan pinched his chin a little speechlessly, took out the detective manual again, looked at the teaser letter left by Kanemoto Ishitaro, and thought seriously:

“...... In the bombardment's teaser letter three years ago, he directly hinted at two locations where the bombs were planted, one of which was a relatively simple reasoning, using the largest Ferris wheel with representative significance, indicating the cup household shopping mall, and the other alluding to the hospital with the word 'ten' on the helmet, but did not specify which hospital it was......"

"If the format of the bomb maniac's teaser letter this time is the same as before, then his 'teaser language' should also be the same, so the way to interpret the location of the first bomb should not be too difficult...... Of the clues known today, the only ones that can be interpreted with certainty are red, moving, and steel boxes, but how do you interpret them?"

Conan pinched his chin and thought, his eyes unconsciously aimed out the window, through the gaps of several high-rise buildings, and saw the Eastern Capital Tower, his pupils couldn't help but shrink, and the whole person was stunned-

Wait! If you want to talk about the red movable steel chest, it seems that there are also in the Eastern Capital Tower!

And, judging by the fact that the blast maniac had blown up Japan's largest Ferris wheel before, it was really possible that he was targeting a landmark of this kind......

Thinking about this, Conan turned his head to look at Takagi Shibu, and said, "Officer Takagi, in my opinion, let's go to the Eastern Capital Tower first!"

"Dongdu Tower?" Takagi was stunned when he heard this, "What are we going to do there?"

Conan smiled slightly and replied, "Because, the bombardier's first bomb is hidden in ......."

At the same time, in a certain office of the Metropolitan Police Department, Hiroshi Kazami also held the phone and exclaimed, "What? In the elevator of the Toto Tower? Are you sure?

"Of course, I'm sure!" Bourbon sat awkwardly in the driver's seat, driving his Mazda RX-7 FD3S on a certain road in Rice Flower Town, and said with a serious face.

“...... I'm heading there now!"