I'm Not a Detective

There was silence in the living room of the Nanabahara family for a long time. Both Takeshi Nanabahara and Ruri Qingjian were immersed in their own thoughts for a while. In the end, Qingjian Ruri spoke first. She took a small bite of the meatballs, forced herself to cheer up, and asked Nanabahara Takeshi: "Then how is this matter related to Grandma Bichuan's 'precognition dream'?"

She sympathized with Kameda Atsushi. In just twenty minutes, she seemed to have watched a life movie. She could feel the sadness of an ordinary adult when he was so desperate that he burst into tears. But she was just an ordinary first-year college student. Girls are still stupid. Even if they sympathize, they can't do anything. They can only calm down and continue to explore the truth.

Takeshi Nanahara came to his senses and sighed while eating: "That was purely an accident. Kameda Atsushi is indeed unlucky."

"Why do you say that?"

"He plans to leave a sum of money to his wife and children, and at the same time take revenge on Aiura Harimitsu who ruined his life. He has already started making preparations." Takeshi Nanabahara said slowly, "He went to make trouble with Aiura before, and the two sides had a physical conflict. , he used this to get Aiura's hair and steal his glasses. By the way, he secretly recorded the sound with a portable device such as a small tape recorder, preparing to use it to synthesize the live sound effects when Aiura "killed" him, but he was unlucky. , the tape was stolen just after the synthesis.”

"Rooted?" Qingjian Liuli recalled the scene, "Has his small cheap apartment been robbed?"

Takeshi Nanahara nodded and said: "He is a fledgling little thief. He picked the lock of his small apartment casually. He probably wanted to find some property, but he didn't expect that Kameda was poorer than him, so he could only record the dual cards that were worth some money. The tape recorder, portable small tape recorder and all tapes were taken away. These devices were originally used by Kameda to synthesize the sound of the 'murder case' scene. The first half was secretly recorded when Kameda was arguing with Aiura, and the second half was the begging for mercy and the cruel voice. It was assigned by Kameda himself in the later period, so the neighbor girl could hear him arguing with Aiura. He was trying out the effect, so the door lock of the apartment was new. If the door lock broke, he had to change it to avoid accidents. Call the police.”

Qing Jian Liuli suddenly realized that she also remembered these details and asked: "Then what?"

Takeshi Nanahara said: "Kedae had no choice, the plan must be implemented, so he could only buy a small tape recorder for the second time, go to Aiura again to make trouble, had another physical conflict with him to complete the secret recording, and then synthesized the tape again in a low-cost apartment. But this time he really didn't have the money to buy a dual-card recorder that could record on dual tapes, so he could only make up an excuse and move the old and heavy dual-card recorder from his home, that is, The one that was previously on his bookcase was given directly to the neighbor girl who helped him free of charge in the last stage of his life after using it."

After a pause, he added, "Actually, he should have destroyed the dual-card tape recorder, but... he is probably a good person, and he really wanted to thank the little girl next door. He also used the little tape recorder to fake the sound of the murder scene. , everything else was just junk, so I could only pick up a bulky dual-card tape recorder that seemed like it could help the little girl next door as a thank you gift."

So this is ah……

Qingmi Ruri thought for a moment and felt that all the reasoning mentioned by Takeshi Nanabahara could be connected with real things, and it seemed that there was nothing to compare with. Moreover, after Takeshi Nanabahara said this, she could figure out what Atsushi Kameda was. The crime was planned, and I felt very sorry. If Takeshi Nanahara had thought of it later, maybe she could have deduced it.

It's such a pity, it's obviously very simple.

She didn't speak for a while. Takeshi Nanabahara glanced at her and continued: "He has been in a hurry and quickly completed the second recording and debugging, preparing to be 'killed' by Aiura, but it was still a little late. At this time The tapes and recorders that were stolen for the first time had already been sold by the thief at the flea market for money, and by chance the tapes were bought back home by the old lady Fumijiang."

Qingjian Liuli suddenly opened her mouth when she heard this: "You mean..."

Takeshi Nanahara smiled and said, "Yes, that tape is in your room now."

Qing Jian Liuli didn't hesitate, got up and rushed to her home. Within three minutes, she came back with the box of second-hand sundries, and Takeshi Nanahara had already taken a small and exquisite dual-card internal recording recorder from the study. On the small square table.

Qing Jian Liuli rummaged through the glove box and asked anxiously: "Which one is it? Do you want to listen to it all?"

Takeshi Nanahara pushed her aside and started rummaging around, "No, we have actually met before. It was in the card slot next to Yoshida's ballad. And he was afraid of getting the AB side wrong, so he would definitely mark it... Oh, I’ve found it, it’s this plate.”

He found the tape and put it into the tape recorder while continuing, "Atsushi Kameda used to have a tape recorder. He would definitely listen to music and buy some tapes. This is what he bought before. Later, he planned to frame Aiura, so he took these tapes from home. He would wash out the tape and record it again, but the content he needed to record was only two or three minutes, so the ten minutes he washed out were enough, and even the original song was still on the other side.”

As he spoke, he installed the tape and pressed the play button. The tape recorder made a low "rustling" sound, and then the scolding voice of a strange man suddenly sounded. It must be the voice of Aiura Jimitsu. The content of the next two or three minutes was basically consistent with the "precognitive dream" of the old lady Fumijiang. The two men went from quarreling to arguing to scuffling, but there was a slight discrepancy with the testimony of the fishermen, and there were many things I said I'm sorry to say.

After the tape was put on the tape and Kameda Atsushi screamed shrilly, the recorder returned to the "rustling" sound, which lasted for seven or eight minutes. Then Yoshida Takuro's song started playing again. Takeshi Nanahara turned off the recorder and said softly: " The reason is this. Old Mrs. Tomie accidentally heard this tape before Kameda Atsushi died, so she had a strange precognitive dream. Now that this tape is in our hands, we no longer have to worry about her coming back. there is a problem."

Qing Jian Liuli breathed a long sigh of relief, so that was it. She had long felt that there was something wrong. It was obviously a scientific world, so how could she have any superpowers? Now everything makes sense... not even close.

She immediately asked: "Grandma Bichuan had nightmares three times, one day apart each time, and they became clearer each time. Could it be that she took the initiative to listen to the tape three times? This doesn't make sense, does she not find anything wrong?"

Takeshi Nanahara smiled helplessly: "Yes, she heard it three times, but she really didn't notice

Qingjian Liuli couldn't understand: "How is this possible?"

Takeshi Nanabahara pointed to the tape in the compact dual-card recorder and explained to her: "The working principles of music tapes and video tapes are basically the same, but the difference between the two is that the video tape is one-way, and the audio and video information is recorded continuously on the entire tape. , for the video recorder to read, while the music tape is bidirectional, divided into two sides, AB, and the audio information recorded on each side only accounts for one-half of the tape width."

Qingjian Liuli didn't quite understand. Music tapes were common, but she didn't understand how this thing worked. She hesitated and asked, "So, what's going on?"

Takeshi Nanabahara pointed at the dual-card tape recorder and smiled: "So if its reading tool is an ordinary tape recorder, if you put the tape in, it will be driven by the only driving tooth to start walking the magnetic strip, allowing the magnetic head to start reading. Information, when side A is turned to the end, its play button will pop up, allowing you to turn the tape over so that it can read side B again.

But Mrs. Fumeijiang uses an old-fashioned dual-card tape recorder, which was used by music enthusiasts in the past. You can put in a music tape and a blank tape at the same time for internal recording. It can only copy the tape information, regardless of the surrounding environment. If you just play music, it will wait for the tape in the first card slot to finish playing and then automatically play the tape in the second card slot, so this situation will occur. "

As Takeshi Nanahara spoke, he loaded two tapes into the recorder and pressed the fast forward button to play. Side A of the first tape was played and Side A of the second tape continued to be played. However, at this time, Aiura scolded Kameda. Here, Takeshi Nanahara released the fast forward button and let Qingjian Ruri listen. But after two or three minutes, the synthesized recording disappeared, and there was another "rustling" sound, and then Takeshi Nanahara fast forwarded slightly. The soft and soothing singing sounded again, the last two A-sides were played, and the play button of the recorder automatically popped up.

But Takeshi Nanahara did not turn the tape over and pressed the play button again. The second drive gear of the dual-card recorder started to rotate, causing the magnetic stripe of the tape to start moving backwards again. The music tape started playing side B without even turning it over. He Continue to fast forward, and after two consecutive B-sides have been played, the play button of the recorder automatically pops up again.

He explained while operating: "This dual-card recorder is different from ordinary recorders. Each card slot has two drive gears. One is responsible for forward rotation and the other is responsible for reverse rotation. It can record and play the entire tape without turning it over. , it was a very advanced technology at that time and a big item in the household, so Mrs. Fumeijiang didn’t have to do anything. She just had to press the play button before going to bed every day to have nightmares.”

Qingjian Liuli finally understood, but still opened her mouth in disbelief: "Is it that simple?"

Takeshi Nanabaru smiled helplessly: "Yes, it's that simple. Mrs. Fumijiang probably has a bad habit of listening to some music and reading some magazines before going to bed. She fell asleep listening to side A of the first tape on the first night. When side A of the second set was playing, she vaguely heard the sound of Aiura and Kameda arguing and fighting, but because she wanted to sleep and was afraid of disturbing her granddaughter, she kept the recorder turned on at a low volume and did not wake her up completely. She just had some vague memories. After just two or three minutes, she fell into deep sleep again. Atsushi Kameda was 'killed' by Harimitsu Aiura the next afternoon, so her dream became a prediction. Dream.

After having such a strange dream, the old lady entered a state of self-doubt and fear when she woke up in the morning. She went to the shrine that day, but even after going to the shrine, her nerves were still tense. She was over 70 years old and would get tired quickly. In the evening, I just pressed the play button and went to bed as usual. But the next night, because I was listening to side B, nothing happened.

On the third day, she was more relaxed, but she still had some self-doubt and fear. She was not completely relieved, and she had no intention of listening to music that day. She was probably thinking about it all the time. Before going to bed at night, she pressed play according to her old habit. She didn't even think about changing the tape, she just wanted to relax and have a good sleep. She was sure that she just had a strange dream by chance, but that night in her sleep, she heard the sound of Kameda and Aiura arguing and fighting in side A, and again Had a nightmare.

This time she was completely panicked and told her granddaughter Mariko Aikawa, and the two of them ran to the shrine together again. She was so restless at night that she was not in the mood to change the tape, so she clicked it casually to listen to the song and have a good sleep. By analogy, on the fourth day I listened to side B and was fine, but on the fifth day I listened to side A and had nightmares again.

By this time, even Mariko Aikawa was a little panicked and hurriedly went to Miss Nakano to verify. She came to see us that night and never went back to live again, so Mrs. Tomie didn't have to have nightmares even if she wanted to. In fact, she was safe. "

Qingjian Liuli was dumbfounded. No wonder the old lady had a nightmare every other night. It was so weird, like a supernatural phenomenon. It turned out that the dual-card tape recorder she bought back then was too advanced. It could play continuously, and the dual-drive could automatically turn the page. I listened to the AB side in a loop, and then I fooled myself.

Damn it, if I could have found out earlier than this guy that Kameda-san committed suicide and defrauded his insurance, and his small apartment had been robbed, and I knew how old-fashioned dual-card recorders and music tapes worked, I would have guessed... No, it was me It can also be deduced.

What a pity, why is it so slightly different every time?