Chapter 202: Oh my god, this Akikawa is really amazing

"Ms. Sera, have you thought of anything?"

Conan noticed Sera Masumi's expression and asked with some curiosity.

He was a little confused. Why could Sera Masumi still smile so happily when the mission had failed?

"Nothing, I just feel a little bit sad about the mysterious man's method of committing the crime."

Sera Masumi shook her head slightly and said with a smile.

"It's really clever. They actually thought of using air pressure to let hydrogen sulfide enter the room, and then using density to make the hydrogen sulfide dissipate without leaving any trace."

After seeing the wide-open windows in the room and the air conditioner turned to the maximum, Conan also deduced the mysterious man's method.

And what surprised him most was.

The clues about the mysterious man have been basically dealt with cleanly.

Neither the identity of the mysterious man, the container that produces hydrogen sulfide, nor even the reactants used to produce hydrogen sulfide are known.

In addition, the surveillance videos at the scene were deleted and turned off by Vermouth.

So Conan was unable to find any clues to identify the identity of the mysterious man.

"Suppose that mysterious person did not control the amount of hydrogen sulfide produced."

"Or if he didn't let the hydrogen sulfide gas in the room dissipate."

"Then not only Miss Sera, but you will also be in danger of your life."

"When the police open the door of Koizumi Kunio's room, the hydrogen sulfide gas will immediately enter the lobby on the first floor, affecting many people."

"It would be very difficult for us to catch the man if the surveillance video was deleted."

Conan said with some fear.

"But that didn't happen, did it?"

Sera Masumi asked back with a smile.

"Obviously the mysterious man is not a bad guy, and he has no intention of involving innocent people."

"And he was obviously very confident in what he was doing and was sure that it would not affect others."

Hearing this, Conan raised his left eyebrow slightly and looked at Sera Masumi with some surprise.

"Why do I feel like you, Ms. Sera, think highly of that mysterious man?"

"And it seems like he understands the other person very well in his words."

"You haven't guessed who the other person is, have you?"

Conan asked.

"No, that's impossible."

"Even the famous 'Kudo Shinichi' didn't figure out the other party's identity, so how could I know?"

When Masumi Sera said "Kudo Shinichi", she did not say anything, but just lip-synced the words wordlessly.

Conan stared at Sera Masumi in silence for a while and did not continue to doubt him.

Sera Masumi looked at Conan who was lost in thought.

It is also clear.

As long as Conan didn't know that Akikawa Kyousuke had pretended to be Koizumi Kunio and called the room, he would not have suspected Akikawa Kyousuke.

In addition, Conan was unaware of the grudge between Akikawa mother and son and the organization, so he was even less able to suspect Akikawa Kyousuke's motives.

This is an absolute barrier created by information asymmetry.

No matter how smart Conan is, he can't surpass it.

"Boy, are you curious about that person's identity?"

Masumi Sera looked at Conan and asked.

"certainly."

Conan said in a deep voice.

"That man really wants to kill Chianti and Vermouth, so he must have a deep connection with the organization."

Upon hearing this, Sera Masumi nodded.

"It seems that the boy is still upset about Chianti's death and letting Vermouth escape."

"For you, our plan this time was really fruitless. We didn't get any intelligence at all."

Masumi Sera thought to himself, then pushed the door open and went outside, then walked up the stairs to the private hot spring area.

She began to observe the surrounding situation carefully.

Trying to find some loopholes left by Akikawa Kyousuke.

However, she did not get what she wanted.

She didn't see any trace of the containers or the reactants used to react to produce hydrogen sulfide.

Afterwards, Masumi Sera left the room and went to the monitoring room.

Started checking the surveillance video.

The surveillance video was indeed just as Conan said, all the footage from the previous night had disappeared.

Therefore, we were unable to capture the scene of Vermouth and Chianti entering Kosenan.

But there was one point that made Masumi Sera feel strange.

"If Vermouth wanted to erase the evidence of her entering and leaving Kosen-an, would she have to delete the surveillance footage of the guest room area, the stairs, and the elevator as well?"

"Besides, it seems that she has no need to delete the surveillance video at all."

'She had disguised herself, and the Chianti almost concealed all her features.'

"And with the way they act, it doesn't seem to matter if they're caught on camera, right?"

This is what Masumi Sera thought of after he confirmed that Akikawa Kyousuke was the mysterious man.

Because Conan said that due to the lack of surveillance video, he was unable to identify the identity of the mysterious man.

In other words, it wasn't just Vermouth and Chianti who didn't appear in the surveillance video.

Akikawa Kyousuke was also not captured by the surveillance cameras.

So Sera Masumi suddenly had a guess just now.

Could it be that the surveillance video was actually deleted by Akikawa Kyousuke?

Akikawa Kyousuke lives on the second floor of Kozenan, so any action he takes will definitely be captured by the surveillance cameras.

In order to conceal his identity, he deleted all the surveillance videos of the corresponding time period to create the illusion that it was Vermouth who deleted the surveillance videos.

"If you want to produce hydrogen sulfide gas, you need something that can react to produce hydrogen sulfide."

"In the murder case two days ago, the murderer used the bathing agent sold in Kosen-an to make hydrogen sulfide gas and killed someone."

"Of course, Akikawa Kyousuke wants to produce hydrogen sulfide gas, and one of the most easily available sulfide-containing reactants is bath additives."

"The bathing agent was stopped selling after the case ended two days ago, so Akikawa Kyousuke must have bought the bathing agent in advance."

Masumi Sera thought to himself and adjusted the interface of the surveillance video to arrange it by date.

Then you see.

Not only has the surveillance footage from yesterday to today disappeared.

The surveillance video from four days ago also disappeared.

Needless to say, it must be Akikawa Kyousuke or his agent who bought the bathing agent four days ago.

That's why Akikawa Kyousuke deleted all the surveillance videos of that day.

"Oh my god, this Akikawa is really amazing..."

"It's like being a secret agent... It's so flawless."

Sera Masumi couldn't help but sigh quietly, then leaned back in his chair.

Although my reasoning is most likely the truth.

But the problem is that there is absolutely no substantial evidence of what Akikawa Kyousuke did.

Even if it was discovered that Akikawa Kyousuke's bath additives were missing, there was no evidence to prove that he did all this.

Besides, Masumi Sera still hasn't figured it out.

How did Akikawa Kyousuke know that Koizumi Kunio would hand over to the organization tonight?

How did he know that the masked Chianti was the murderer of his mother?

Because Sera Masumi clearly remembered that Chianti was wearing a motorcycle helmet that completely concealed his facial features on the national highway.

(End of this chapter)