My neighbor's name is Conan

"Then how could the right side of the pants be poisonous?" Maruta Ayumi fell into deep thought again.

It’s strange. There is poison on the fingertips of the left hand. How come there is poison on the right side of the pants?

This is unscientific!

It stands to reason that the left side of the pants should be poisonous!

Aoki Song thought for a while, looked at the three staff members and asked, "Does President Dejima have any special habits? For example, he is used to using his left hand."

Ukihiko Zaizu thought for a while and replied: "Well, if I want to say something special, it should be that he loves to be clean and is a coffee fan."

"I like cleanliness and am a coffee fan." Aoki Song frowned upon hearing this.

At this time, Xia Horiyong said: "When the president sits on his seat, he must wipe his hands clean with a wet tissue first."

Tetsuo Imai also said: "It took me ten years to make a cup of coffee that the president was satisfied with."

Aoki Song lowered his eyelids and began to think.

[I love cleanliness very much, so after using the toilet, the other person should wash his hands first before eating the burger. However, if you wash your hands, it is possible to wash away the poison, which is inconsistent with the murderer's purpose of killing people. 】

No.

He also took a good look at the clues in this case.

A known:

1. President Dejima’s right side of his pants was poisonous, but his right hand was not.

2. President Dejima’s left hand was poisoned, and he was eating the burger while holding it with both hands.

3. President Dejima loves cleanliness very much. He will definitely wash his hands after going to the toilet, and the poison on his handkerchief will react with it.

4. No other toxic reactions were found in other places except President Dejima’s body.

There are paper towels in the company, and wet wipes are used to wipe tables, which means that handkerchiefs may only be used when going to the toilet and wiping sweat. But now that the weather is quite cold, he needs to wear two layers, and he is indoors. President Dejima himself is the president and will not be scolded by his boss. He will most likely not sweat, and his forehead will not react to poisons.

There was a small amount of poison reaction on the handkerchief, which meant that President Dejima did get poison on his hands after entering the toilet, rather than the poison on the handkerchief.

However, no poison reaction was found in the toilet. It could not be that a poison fell from the sky inexplicably, or that there were poisons in the burger that were harmful to people indiscriminately.

Although it is unclear why this case has not yet been related to Conan and other protagonists and supporting characters, Aoki Song firmly believes that this is just a daily case in Conan, or a classic three-choice case, and it cannot be particularly difficult.

Then, if you want to solve the case, you have to examine the scene more carefully, looking for clues,

The first step is to break down the steps that President Dejima takes to go to the toilet.

Aoki Song thought about the steps for ordinary people to go to the toilet: open the toilet door and walk in - open the toilet lid - take off your pants - sit on the toilet - stand up and put on your pants after finishing - press the switch of the toilet - Close the lid of the toilet - wash your hands - open the door and leave.

Thinking of this, Aoki Song asked: "Will the lid of the toilet and the lock of the inner and outer door of the toilet react with poison?"

Ayumi Maruta looked at the notebook and shook his head, "No, there is no toxic reaction anywhere in the toilet."

At this time, Saizu Ukihiko said: "Police Department, the toilet lids here are not closed."

Upon hearing this, Aoki Song immediately crossed out the two steps regarding the toilet lid in his mind.

Then he asked: "Did you notice, President Dejima, which hand you used when opening the toilet door?"

"It's the right hand!" Saizu Ukihiko said: "I happened to take a look at it at that time."

[This proves that President Dejima’s right hand was not contaminated with poison when he entered. After entering the toilet, close the toilet door, take off your pants and sit on the toilet. 】

Aoki Song thought of this, walked into the toilet, and continued to analyze based on the real thing.

The layout of the toilet is very simple, with a toilet with a sink, and then a shelf nailed to the wall on the left hand side with a few rolls of toilet paper and a box for wet wipes.

Underneath the storage shelf is a paper towel holder. At this moment, there is a roll of toilet paper on the paper towel holder. There is a towel rack nailed to the wall on the right, with a white towel hanging on it.

Take off your pants and sit on the toilet. The only things that can be reached with your right hand are towels, door locks, paper towel holders, and the right side of the toilet.

If President Dejima's right hand could be contaminated with poison, he should be in these places. After using the toilet, he should get up and put on his pants.

At this time, because the poison was stained on my right hand, it was also stained on the right side of my pants.

Then he stood up and pressed the switch of the toilet. However, since the person was standing facing the toilet, since President Dejima was not left-handed, he should use his left hand to press the switch. It would be awkward to use his right hand.

But until now, President Dejima's left hand was not contaminated with poison, because the poison reaction was not detected on the switch.

The next step should be to wash your hands.

There is a high chance that a large part of the poison on the right hand will be washed away, and the remaining part will be wiped away with a handkerchief.

But the left hand should not be contaminated with poison during this step of wiping hands. Otherwise, the reaction to the poison in the left and right hands should be the same.

After wiping your hands, what should you do?

Naturally, open the door and walk out!

But after President Dejima walked out, he took a hamburger and ate it, he was immediately poisoned and died.

In other words, there are two steps missing.

The first step is to get the poison on your right hand, and the second step is to get the poison on your left hand.

It can be touched by both hands, which means there is something that can be touched twice without being left in the toilet...

Aoki Song looked around the entire toilet. What would someone take out?

Looking up, down, left and right, Aoki Song suddenly focused on the paper towel holder.

Neon people are used to throwing paper towels into the toilet and flushing them directly. However, the innermost paper core of the roll paper cannot be flushed down. If it is used up, you have to take the paper core from the paper towel holder and throw it away. In the trash can.

Thinking of this, Qingmusong quickly looked for a trash can.

There is no trash can in the toilet, but there are several trash cans in the office.

After Aoki Song looked around, he saw a paper core tube in the trash can in the kitchen next to the toilet, and he suddenly knew something about it.

He immediately called the forensics department and asked them to search the kitchen carefully.

After the instructions were given, Aoki Song added the paper core tube to the procedure, and sure enough, everything made sense.

Suddenly, an idea flashed in Qingmusong's mind, and he remembered it!

Isn’t this, that case?

Haibara Ai's sister Miyano Akemi, before the incident, put the tape of her parents' eleventh birthday greetings for Haibara Ai in a toilet tank in a company.

It also attracted the "wine factory" to infiltrate the company twice, once to install bugs and the other time to recover the bugs.

However, in this life, because Miyano Akemi and Haibara Ai were rescued by the Kudo family together, there is a high probability that the tapes here have been taken away by Miyano Akemi, so this time Conan and Haibara Ai did not appear. it's here.