An hour later......

As more and more police officers who were notified arrived at the Metropolitan Police Department, more and more police officers were involved in the search for Shoji Kuroda's whereabouts.

In 24 hours, it is difficult to find a five-kilogram bomb in the complex Tokyo subway system. The only clue at the moment is the phone call challenging the police. However, what Lin Shuichi cared about was not these, but the true purpose of Shoji Kuroda hidden behind it.

Now that Shoji Kuroda has regained his freedom, the most important thing to do is not to leave RB immediately, he is now risking his life to import 30 tons of semtine explosives from abroad, what does Shoji Kuroda want to do, what does he want to get, Lin Xiuyi is very curious.

"Police Department, there is a call for you, it seems to be from the Public Security Committee!" Miki suddenly came to Lin Xiuyi, interrupting Lin Xiuyi's thoughts. Lin Xiuyi came to his senses at this time, and then picked up the extension phone on his desk.

"Shuichi-kun, I heard that Shoji Kuroda appeared and planted a bomb in the subway system in Tokyo?" asked Keiko worriedly on the other side of the phone.

"I don't want to hide it from you, it's true, Shoji Kuroda gave us twenty-four hours. There are still more than twenty hours left, and we are going all out to search for the traces of the bomb!" Lin Xiuyi told Jingzi the truth.

"Shuichi-kun, please be sure to resolve this crisis as soon as possible, otherwise, it will bring great trouble to Mr. Ando," Keiko said to Lin Shuichi in a commanding tone on the other side of the phone.

"Well, I'm sorry, I can't make such a guarantee, unless from now on, suspend the operation of all subway lines in Tokyo, and give us enough time to thoroughly investigate the Tokyo subway system!" Lin Xiuyi said helplessly.

"It's not possible at all, listen to Shuichi-kun, you, me, and Mr. Ando are now partners in the same boat, and once there is a serious negligence during your investigation of the case of Shoji Kuroda, not only will you stand up and take responsibility, but Mr. Ando will also be implicated. Remember, no matter what, there must never be another incident as serious as the Tokyo subway bombing......"

Lin Xiuyi and Jingzi discussed for more than ten minutes, and Jingzi's meaning was very clear, Lin Xiuyi had to calm down the incident as soon as possible without any help from the top. After Lin Xiuyi put down the phone, he sat down on the seat with his body down, and his hand touched his forehead and fell into deep thought.

As the criminal police officer in charge of this case, Lin Shuichi has a very detailed understanding of Kuroda Shoji's resume. Kuroda specifically mentions the 24-hour time span, which exactly means by that. Why is it twenty-four hours, Lin Xiuyi is very puzzled by this.

Twelve hours, if you really want to do something, is too long, and twenty-four hours later, it is about one o'clock in the morning, when only a few subway lines are still in traffic. So......

"Well, who knew that there was still a subway line in operation after 12 midnight?" Lin Xiuyi suddenly stood up and asked everyone in a loud voice.

Almost everyone stopped what they were doing and looked at Lin Xiuyi, and the entire office area suddenly became very quiet.

"Well, sir, it's the Yurakucho Line! there's a last train at about 12 o'clock in the morning!" a police officer immediately stood up and reported to Lin Xiuyi.

"Contact Tokyo Metro and Toei Subway right away and ask them about all the subway lines that are still operating at 1 a.m. Lin Xiu stood up and immediately ordered.

Lin Shuichi suddenly understood a problem, RB's transportation system was the most punctual in the world, maybe Shoji Kuroda was planning to take advantage of this? After all, the purpose of detonating a bomb at one o'clock in the morning was definitely not to pursue the maximum casualties, I am afraid it was for some other purpose.

Ten minutes later, the two subway companies in the city summarized the relevant subway schedules to the Metropolitan Police Department according to Lin Xiuyi's request. In Tokyo, almost every subway train has its last train scheduled in the early hours of the morning. From 12 a.m., the last train departs from either side of the metro line.

Since one o'clock in the morning was chosen, the route had to be long enough to take more than an hour, so the shorter loop route recorded by the Tokyo City was quickly ruled out.

If we think about it in this way, the three lines that are the farthest in the country, the Tozai Line (30 km), the Yurakucho Line (28 km), and the Oedo Line (27 km), which take more than an hour to drive, are the most likely subway lines to be attacked.

Of the three lines, the Oedo Line is a circular line centered on the center of the city, and most of the stations are located far from central Tokyo, so it seems that there is little point in choosing to attack this line.

The longest distance to the east-west line, the closest to the city center is RB Bridge, Takebashi, Otemachi, and the four stations under Kudan. It is located in the northeastern part of the Imperial Palace and is surrounded by commercial areas. But what is the purpose of attacking an empty business district at one o'clock in the morning?

And the last remaining subway line is the Yurakucho line that Lin Xiuyi takes every day. The route passes through Nagata Town and Sakurada Gate. Among them, Eiraku Town is the seat of the official residence of the Prime Minister RB. Sakurada Gate is home to the Metropolitan Police Department and the National Police Agency, and the Ministry of Justice is across the street. If you think about it from Shoji Kuroda's point of view, perhaps the Ministry of Justice, which sent him to prison and sentenced him to death, would be the best target for revenge.

"Can anyone tell me where the last two trains on the Yurakucho Line will come from around one o'clock in the morning?"

As soon as Hayashi Shuichi's question was revealed, the police officers present immediately opened the navigation software on their mobile phones and began to inquire from Shin-Kiba Station and Wako City Station at the north and south ends of the Yurakucho Line.

"Report, the line from south to north will probably reach the place north of Kotake Mukai Hara Station at one o'clock!"

"Report that the train heading south from Wako City Station will be in the area near Nagata Town and Sakurada Gate at one o'clock!"

As soon as these words came out, the scene was in an uproar, and now there was no need for Lin Xiuyi to say anything, everyone also understood the problem.

Notify Tokyo Metro Co., Ltd. immediately, and from now on, closely monitor the passenger flow at Nagatamachi Station and Sakurada Gate Station. Let's see if we can find Shoji Kuroda in the video.

"Hello!"