Refuse to allow Conan to join the main storyline

The location specified in the anonymous letter was a semi-abandoned five-story business building in the western suburbs of Tokyo.

Koizumi and Hagiwara searched the entire building, but only found an old man watching horse racing in the duty room.

Xiaoquan poked his head into the duty room and shouted to the old man, "Uncle, there is a bomb in the building. You'd better go out and hide."

The old man was holding a newspaper in his hand, his eyes focused on the horse racing, and he turned a deaf ear to Koizumi's shouts.

Koizumi shouted again: "Hey, old man, I warned you, I will not be responsible if you are killed in the explosion."

This time, the old man finally responded.

He turned around and cursed at Koizumi impatiently: "Get lost!"

Koizumi spread his hands to Hagiwara Kenji behind him and said, "Well, Officer Hagiwara, I have fulfilled my duty of reminding you."

Hagiwara Kenji: …

Because of the traffic jam, it took them more than forty minutes to get here, and nearly another twenty minutes to search the entire building.

Although they had actually found a time bomb in a room on the third floor, what puzzled Hagiwara was that Sakurai stopped him from entering the room.

This person just went in to confirm by himself, then ran out and said "there's still enough time", and insisted on dragging him along to search the entire building, and then ran to the first floor to try to drive away the only living person in the building.

Let’s deduct the time it took for the prisoner to write the letter and have it delivered to them…

If you calculate, there might not be much time left for them to defuse the bomb, but until now, he hasn't even seen the appearance of the bomb.

And they could have acted separately, but Sakurai refused to agree.

Is this because they are afraid that he will be ambushed while he is concentrating on defusing the bomb?

Or is there some other concern that he is not aware of?

But no matter what, it would definitely be right to follow her arrangements.

This is what Kenji Hagiwara thought.

Koizumi did have her own concerns in doing this.

If she came here alone, she could get away safely even if something unexpected happened, but now there is Hagiwara next to her!

She has a lot of luck, but Hagiwara doesn’t!

It is better to act cautiously.

And the more she thought about it, the more she felt something was wrong.

He had just accepted a strange wedding commission, and then Pramiya took the initiative to provoke him.

I just feel like there's some connection between these two things?

This so-called "final exam" was most likely a trap that had been designed long ago, just waiting for her to step into it.

In addition, Hagiwara was also involved, and there might be pursuers behind the two of them. Koizumi was very worried that there might be more than just a time bomb in this building.

She searched the entire building from top to bottom, and quietly placed toy surveillance cameras in every corner of the building to see if anyone was hiding somewhere preparing for a sneak attack.

But the strange thing is that, except for the old man who was watching over the building on the first floor, there was actually no living person in the entire building.

Moreover, she did not find any traps.

So normal that it's not right...

Now the only room left is the one on the third floor where the custom-made bomb device is suspected to be installed.

At this point, there should be very little time left for them to defuse the bomb.

If there is no time to defuse the bomb, the worst that can happen is to just store the bomb into the system space.

It was precisely because of this operation as an insurance policy that Koizumi spent a lot of time searching and investigating.

Returning to the last room of doubt, Koizumi confirmed the situation in various places in the building again through the consciousness connection, and then walked in with Hagiwara Kenji.

This is a fairly large vacant office.

There was a lonely table in the middle of the empty room. The things on the table were covered with a large piece of canvas, so that only a square shape could be seen.

Seeing Koizumi standing by with his arms crossed and looking at him with a smile, Hagiwara Kenji understood what he meant and walked forward to lift the canvas, revealing a square metal shell inside.

Then, before he could continue operating, the metal shell automatically opened and fell to both sides, revealing the true appearance of the "final assessment".

The first thing that catches your eye is two huge glass jars on the left and right, one is fluorescent pink and the other is fluorescent blue. I have no idea what unknown liquid is inside them.

There was a large electronic display screen between the two glass jars. The numbers on it were jumping, showing the remaining time as...

1 minutes 34 seconds.

Only then did Koizumi walk over leisurely and reached out to touch the glass jar.

"Yeah, worthy of me. The remaining time is just right."

When she came in to check just now, she found that there were still more than twenty minutes left.

Without a remote control, this time is a bit too long if you want to use this thing for yourself.

So when she dragged Hagiwara around upstairs and downstairs just now, she was indeed deliberately killing time by using the process of searching.

Koizumi looked carefully at the big guy in front of him.

Apart from anything else, Pramiya has indeed updated the timer to a more advanced electronic display screen.

Without the "ticking" sound of the countdown, the concealment of the time bomb will indeed be greatly enhanced.

At least for someone with keen hearing like her, it did become more unfriendly.

Hagiwara Kenji also looked at the device in front of him with interest: "Oh, a liquid bomb. This thing is not cheap."

He carefully looked at the mark somewhere on the outside of the glass jar: "Grade A glass product, special custom style, customized in China. I have dealt with this supplier a lot, maybe I can get the buyer's information from him."

Or was it because Koizumi was nearby that Hagiwara Kenji was confident that the bomb would not explode? Unlike previous bomb disposal procedures, he did not start cutting directly, but first studied the structure of the explosive and found the outlets of the two glass jar output conduits.

The two tubes are placed opposite each other, one on the left and one on the right, with a one-centimeter gap in between, and there is a small sink underneath.

It can be predicted that after the bomb is activated, the unknown liquid in the tank will flow out through their respective tubes, then gather here, triggering a chemical reaction, and then leading to an explosion.

Kenji Hagiwara touched the two tube outlets exposed to the air, raised his eyebrows and whistled.

Koizumi was taking out the various bomb disposal tools prepared by Sakurai and placing them on a table. When he heard the whistle, he turned around and looked over.

Then she saw Hagiwara threw a piece of gum into his mouth and was chewing it without any tension. He lifted up the electronic display screen and looked at the various circuits hidden inside, but it seemed that he still had no intention of dismantling it immediately.

Koizumi: ...?

Is Hagiwara so sure?

Well, at least when facing such a big guy, he still maintained a good attitude, and it can be seen that he really knew what he was doing.

And with her here, this thing definitely won’t blow up.

Koizumi patted Hagiwara's arm and gestured to him at the tools on the table.

Hagiwara Kenji smiled and nodded: "Ah, actually..."

Then he was stopped from speaking any further.

Koizumi made a "hush" gesture to him and then took out the signal detector in front of him.

Kenji Hagiwara quickly glanced around the room and nodded.

However, Koizumi walked around the room, but the signal detector did not respond at all.

Although it was a premeditated "exam", there was no monitoring or surveillance equipment?

This means that the bomber was very sure about what would happen here, so he simply gave up on surveillance?

Koizumi frowned slightly, took out the explosive detector, and walked around the room again.

But still nothing was achieved.

Hey, wait...

Are explosives detectors ineffective against liquid bombs?

"Drip, drip, drip..."

Koizumi was startled by the sudden sound. He turned around and saw that the time on the electronic display screen of the explosive device began to count down to ten seconds.

However, Kenji Hagiwara had not cut a single thread, and he had not even touched the tools that Koizumi had placed on the table.

Koizumi watched the bright red numbers on the electronic display screen jump into the final countdown.

3, 2, 1...

Kenji Hagiwara suddenly turned around and smiled at her with a relaxed look.

"Boom!"