My neighbor's name is Conan

Chapter 888 Chestro Illusion

At this time, Aoki Matsu's cell phone suddenly rang.

"Hello!" Aoki Matsu answered the phone.

"Inspector Aoki, we have already investigated the matter you asked us to investigate before. Wakamatsu Kohei's first wife was Satake Michiyo, and they had a daughter named Wakamatsu Yoshimi. However, after the divorce, Wakamatsu Yoshimi changed her surname to her mother's, and is now called Satake Yoshimi." The police officer from the Metropolitan Police Department replied.

Aoki Matsu was shocked when he heard this. "You mean Satake Yoshimi is Wakamatsu Kohei's biological daughter?"

"Yes, I have sent you the relevant information via text message," the police officer replied.

"I understand!" Aoki Matsu replied.

Seeing that Aoki Matsu had hung up the phone, Maruta Ayumi couldn't wait to ask, "Inspector, is Miss Satake President Wakamatsu's biological daughter? Is that true?"

Koshimizu Nanatsuki also looked at Aoki Matsu.

Aoki Matsu opened the text message and read it, then handed it to the two of them and said, "It's true. Miss Satake is the daughter of Mr. Wakamatsu Nozomi and his first wife."

"So, Miss Satake had a motive for killing Mr. Ikuro and Mrs. Wakamatsu." Koshimizu Nanatsuki said, "To avenge her father and to obtain the Wakamatsu family's fortune."

"But where is the evidence?" Maruta Ayumi frowned when he heard this.

Even if Satake Yoshimi has a perfect motive for murder, it doesn't mean she has to kill. She can't arrest the person without evidence.

Qing Musong thought for a moment and said, "What is certain is that the murderer sprinkled poison powder on the door handle of Mr. Ikuro's room tonight. So we can blow them up."

"How to explode?" asked Nanatsuki Koshimizu curiously.

Aoki Matsu laughed when he heard this, and then asked Maruta Ayumi to call Yonehara Sakurako over.

"Officer, what do you want to talk to me about?" asked Sakurako Yonehara after being called over.

"Ms. Yonehara, may I ask if there are any small bottles of drinks in the villa?" Aoki Matsu asked.

Yonehara Sakurako was stunned when she heard this, and then said, "Yes, we have oolong tea in plastic bottles."

"Very good, wait a minute and you'll do this... do you understand?" Aoki Matsu asked.

Although Yonehara Sakurako didn't know what Aoki Matsu was going to do, she still nodded and said, "I understand."

Then Aoki Matsu asked Nanatsuki Koshimizu to accompany Sakurako Yonehara back, and then sent a text message to Ran Mouri.

Koshimizu Nanatsuki has completely understood Aoki Matsu's intention. It must be said that this is indeed a good idea when there is no other way.

Wait for Nanatsuki Koshimizu and Sakurako Yonehara to return to the living room.

Mao Lilan also saw the text message sent by Aoki Matsu and immediately followed the text message. "Ms. Yonehara, do you have any bottled water? I'm a little thirsty."

Before Yonehara Sakurako could answer, Fujinami Junsei complained, "Me too, my throat is so dry."

Seeing this, Shiina Masafuji said, "Because you didn't drink any black tea from beginning to end."

After hearing this, Yonehara Sakurako followed what Aoki Matsu had taught her and said, "Then why don't you drink the oolong tea I bought when I went to buy soy sauce? If you use a plastic bottle, there's no way to poison it."

"Okay!" Fujinami Jun'o responded immediately.

Then Nanatsuki Koshimizu accompanied Sakurako Yonehara to the kitchen to get oolong tea and distributed it to several people.

Mao Lilan was the first to unscrew the bottle cap and take a sip.

Then the others unscrewed the bottle caps one by one and started drinking.

Nanatsuki Koshimizu had been standing aside and secretly observing the few people.

After taking a few sips, Fujinami Junsheng took out his watch and looked at it. He was shocked and said, "Really? It's already past 1 o'clock."

Satake Yoshimi had been drinking water with the bottle cap and bottle in one hand. Hearing this, he was shocked and said, "No way, the last train is gone."

When Shiina Masafuji heard this, he asked Koshimizu Nanatsuki, "Officer, how long will it take to end?"

Seeing this, Nanatsuki Koshimizu raised her lips and said, "You don't have to continue cooperating with our investigation, because the result is clear."

"What!?" Everyone was shocked when they heard this.

Yonehara Sakurako immediately asked, "Officer, do you know who killed Mr. Ikuro and his wife?"

Shiina Masayuki couldn't help but ask, "Are you telling the truth?"

Fujinami Junsei also said: "The murderer has been found? Who is it?"

"That's right!" Nanatsuki Koshimizu responded, "The murderer of Mr. Ikuro and Mrs. Wakamatsu has been caught. It was the same person."

Hattori Heiji and Conan looked at Nanatsuki Koshimizu with frowns because they missed some key information.

Upon hearing this, Fujinami Junsheng quickly said, "But, didn't the vice president do this to Mr. Ikuro?"

Satake Yoshimi also agreed, "Yes, the vice president sprinkled poison powder on the door handle of Mr. Ikuro's room in advance, so Mr. Ikuro, whose hands were stained with poison powder, took the Baumkuchen and ate it, and was poisoned, right?"

Shiina Masafuji followed suit: "Yes, and the vice president's slippers also contained poison powder, didn't they?"

Yonehara Sakurako also said: "Isn't that what was left on the slippers when the poison powder was sprinkled on the door handle?"

"That's a sleight of hand." Aoki Matsu walked in and said.

Yonehara Sakurako was stunned when she heard this. "A trick?"

Qing Musong nodded. "Yes, it was a move planned in advance by the murderer in order to frame Mrs. Wakamatsu."

"But where is the evidence?" asked Fujinami Jun'o.

"Because Mr. Ikuro went to the bathroom to wash his hands not long before he took the Baumkuchen. Even if he got the poison powder on his hands when he walked out of the room, he had already washed it off, right, Xiaolan and Ha?" After saying this, Aoki Matsu turned to look at Maori Ran and Toyama Kazuha.

Mao Lilan nodded, "Yes!"

Yuanshan Heye followed up and said, "I also saw him wipe his hands with a handkerchief."

Maori Kogoro frowned and said, "But it's not so easy to make Mrs. Wakamatsu wear slippers covered with poisonous powder."

"It was the toilet!" said Nanatsuki Koshimizu. "The pair of slippers must have been swapped when Mrs. Wakamatsu went to the toilet. The murderer swapped Mrs. Wakamatsu's slippers that were placed in front of the toilet door with the slippers that were stained with poison powder."

After hearing this, Fujinami Junsei asked again, "So, how did the murderer get that stupid son to take the poisoned Baumkuchen by himself?"

Yonehara Sakurako also said: "If Mr. Ikuro's hands were not stained with poison powder at the beginning, is there any other way?"

At this time, Maruta Ayumi came over pushing a food cart.

Koshimizu Nanatsuki continued, "It's easy! Because the Baumkuchen is placed where the gluttonous Mr. Ikuro can't help but take it, not to mention if he's hungry."

"This...how is this possible? The Baumkuchen at that time was divided into eight equal parts, and the size of each piece was the same. Do you know what's the use of just changing the position?" Kogoro Mouri was a little unconvinced.

"It's because of visual deception. Just look at the arrangement of the Baumkuchen on the dining car and you'll know." Qing Musong pointed at the dining car and said, "You should take it when you're hungry."

"Hmm? You must be hungry," said Maori Kogoro as he walked over to take it, and then he was suddenly surprised, "Hmm! This, this is..."

Maori Kogoro's face suddenly changed, and he said in surprise: "Wait a minute, it's obvious that the piece of annual ring cake placed inside is bigger."

Yonehara Sakurako came over and took a look, and was also surprised, "Hey, it's true!"

Fujinami Junsei also came over curiously to take a look and exclaimed, "If that's the case, if a person is hungry, he would instinctively reach for the piece inside right away."

Maori Kogoro was immediately confused. "I just said that the two pieces of Baumkuchen are the same size."

Qing Musong smiled and said, "It's the same. This is the annual ring cake we prepared for the investigation site."

"Huh!" Maori Kogoro couldn't believe what he said. "Don't talk nonsense, just stack them up. This big one is obvious! Eh!!!"

Everyone who saw this scene was shocked.

Kogoro Mouri's face was distorted. "They are exactly the same size!!! What's going on?"

"That's the Chesterlow illusion," Nanatsuki Koshimizu explained. "When people compare sizes with their eyes, they generally compare the two closest sides. So when fan-shaped things like Baumkuchen are placed together for comparison, people will compare the long side with the short side.

So even though they are the same size, you will mistakenly think that the inner piece is bigger. This is a kind of visual illusion discovered by psychologist Chester Rowe 100 years ago.

Fujinami Jun'ei immediately understood, "So that's what's going on. The murderer placed the poisoned Baumkuchen in a place that looked larger, and asked Mr. Ikuro to take it himself."

But Maori Kogoro still has doubts, "But if this method is used, then the housekeeper Miss Yonehara and the secretary Miss Satake who were in charge of cutting the Baumkuchen and placing the tray, Mr. Fujinami who was standing next to the tray of the Baumkuchen, and Mr. Shiina would have been able to do it without anyone noticing!"

"It can be done, because among the four of them, one person has the means to poison the lady." Qing Musong said: "Now follow us to the study."

Everyone followed Aoki Matsu to the study.

Kogoro Mouri was sitting in front of the computer desk, the four suspects were standing behind him, and Matsu Aoki and Nanatsuki Koshimizu were standing beside the desk.

Maori Kogoro looked at the things on the computer and asked in silence: "What is going on? I thought the mystery was about to be solved, why are you suddenly showing us this kind of picture?"

"Detective Maori, please look carefully. There are 50 styles." Aoki Matsu said, and then said to the four suspects: "This is the picture that Mrs. Wakamatsu showed you before she passed away."

Satake Yoshimi responded, "Yes."

After looking at it for dozens of seconds, Kogoro Mouri became a little impatient and pressed his nose hard with his hand.

Seeing this, Aoki Matsu said, "Detective Maori, are you tired?"

Maori Kogoro said irritably: "Of course. Why do you keep making me look at this flashing thing?"

Nanatsuki Koshimizu turned off the computer screen, took out the pen and notebook that she had prepared long ago, and said, "Then can you write the character '若' in Wakamatsu now?"

"What? Such a simple Chinese character." Kogoro Mori was a little surprised when he heard it, but still took the pen and paper and did as he was told.

But I had just written the radical of the character "草" and then I didn't know how to write it again.

"This, this!" Maori Kogoro said awkwardly: "It should be..."

Maori Kogoro quietly asked Aoki Matsu, "Inspector Aoki, what is the word "若" under the initials? I suddenly can't remember it."

Aoki Matsu didn't answer. Koshimizu Nanatsuki said calmly, "Because you've watched Detective Mori too many times, your image has collapsed."

"The phenomenon of image collapse?" Kogoro Mouri was stunned.

Nanatsuki Koshimizu said, "Yes, I think you have probably seen the shape of clouds or stains on the wall as human faces. This is a reaction produced by the facial nerve source in the brain, and you unconsciously see those shapes as human faces.

In fact, the human brain also has Chinese character neurons similar to facial neurons. If you keep looking at the same Chinese character for a long time, the Chinese character neurons will become fatigued, which will cause a decline in the sensory function of that character.

In other words, even if a word is familiar to us, we will doubt its image and become unrecognizable, which is the so-called image collapse. "

Hattori Heiji finally understood and said, "So that's how it is. The murderer showed the words 'Wakato no Sake' to Mrs. Wakamatsu again and again. After the image collapse occurred, he asked Mrs. Wakamatsu to sign the contract, and then signed Mrs. Wakamatsu's name 'Wakamatsu Celery'.

Then suddenly she couldn't remember how to write the Chinese character for "若", so Mrs. Ruo Song subconsciously took the Chinese dictionary from the bookshelf, and she came across the line of characters "wa" with poison powder on it. "Eat the poison in your mouth, right?"

Nanatsuki Koshimizu nodded, "Yes, the kanji '若' is one of the kanji that is easy to confuse. Also, I remember that when Mrs. Wakamatsu was turning the page, Detective Mori said that she licked her thumb."

Maori Kogoro also understood, "That is to say, the designs are all criminal methods, that is--"

Aoki Matsu looked at Satake Yoshimi and concluded, "It was the secretary, Ms. Satake, who showed the word Waka to the wife several times and asked her to sign the contract. Only you can carry out such a criminal method."

Fujinami Junsei said in horror: "Really, it's really Miss Satake!"

Shiina Masafuji also said: "It's unbelievable."

Yonehara Sakurako retorted at this time: "But could it be just a coincidence? These are all evidences against Ms. Satake. The reason why Mr. Ikuro was hungry was just because the soy sauce suddenly ran out."

"I don't think this is a coincidence. When Mrs. Wakamatsu asked Miss Satake to make tea again, you asked Mrs. Wakamatsu what brand of tea she wanted, right? This means that Miss Satake knew what was in the kitchen of this house, so it is possible that she secretly took away the soy sauce." Aoki Matsu said.