Detective conan villain at the start

 After hearing what Aizen said, Eri smiled and said, "Compared to being a detective, I prefer the profession of lawyer."

 Aizen said, "This is better. At least there is one less person competing with us for our jobs."

 Eri smiled and said, "Like I said, if he was tied up like that, all we have to do is cut the thin wire when the body is found. No matter how the police investigate, they will only find traces of the ring. And because Mr. Tsukumo often performs, there will be traces on his hands, and it will not arouse suspicion at all."

 Aizen said, "There is a phone in the room. Mr. Motoyasu can use the phone to call for help."

 "Heh... are you testing me?"

 Eri raised her eyebrows and looked at Aizen with a smile.

 Aizen shrugged and said, "I'm asking you if you know."

 "Okay, I'll just assume you're asking me."

 Eri Kisaki walked to the table and said, "The criminal can just unplug the phone line, and when the body was found, he could have plugged it back in during the chaos. No one would have noticed in the panic."

 "You're amazing!"

 Aizen gave Eri Kisaki a thumbs up.

 Eri Kisaki smiled and said, "Thank you for the compliment."

 Nanae Tsukumo was shocked and said, "So, the people who killed my husband are my husband's three students?"

 Eri Kisaki nodded and said, "I think so."

 Nanae Tsukumo asked, "Do you know who the criminal is?"

 Eri Kisaki shook her head slightly and said, "We don't know yet. We only know that the criminal is one of your husband's three students."

 Aizen stepped forward, took out the phone from the pile of playing cards, and put it on the surface.

 After looking at the phone, Aizen said to Eri Kisaki: "Miss Kisaki, I have discovered something again. Do you need me to remind you again?"

 "Oh?"

 Eri Kisaki glanced at Aizen, and then looked at the phone. Facing Aizen's challenge, she didn't want to admit defeat.

 Eri Kisaki looked at it for about a few dozen seconds, and suddenly stretched out her hand to Nanae Kujuu and said: "Nanae, give me the playing cards."

 Although Kujuu Nanae didn't know what Eri Kisaki wanted the playing cards for, she still put the two playing cards stuck together in Eri Kisaki's hand.

 Eri Kisaki looked at the playing cards in her hand, then looked at the phone on the table, and the corners of her mouth curled up slightly, revealing a smile.

 Aizen sighed and said, "I say, can't you be a little dumber? I really don't feel accomplished like this!"

 "Without your reminder, I would never have found the clues left by Mr. Motoyasu."

 While speaking, Eri Kisaki pressed the redial button on the phone and said to Aizen, "My guess is correct, right?"

 Aizen nodded and said, "The appearance of the playing card is the same as the redial button on the phone. I think Mr. Motoyasu wants us to press the redial button."

 "What's going on? How could this be?"

 Eri Kisaki exclaimed, looking at the numbers displayed on the phone in confusion. This number is too different from the ordinary phone number.

 Aizen saw it and said, "I think since Mr. Motoyasu pressed such a number, he also made a playing card as a reminder. I think it must have its meaning."

　"I know this, too."

 Eri said, turning to Nanae Tsukumo and said, "Nanae, do you have a pen and paper?"

 "There are some in the drawer."

 Nanae Tsukumo said, walking to the table, opening the drawer, and taking out a notebook and a pen.

 After Eri took the paper and pen, she wrote the number on the phone in the notebook.

 "126871*32489*13548*1397, what does this mean?"

 "I know!"

 Aizen clapped his hands and smiled.

 "You know it again?"

 Eri looked at Aizen with some reluctance. Aizen was one step faster than her. Aizen figured out what the number represented, but she didn't understand it yet.

 Aizen nodded and said, "If we regard * as an interval, and press the six numbers 126871 on the phone, we can find something interesting."

Eri simulated it in her mind, her eyes lit up and she said: "126871, it's D, the letter D."

 Aizen said: "Yes, it's the letter D, and 32489 is a letter C."

 Eri thought for a while and said: "Then the 13548 and 1397 at the back are... Mako, DC Mako."

 "Mako?!"

 Nanae Kyuujiu said in surprise: "." Could it be that it was Mako who killed my husband?"

 "No!"

 Eri shook her head and said: "We can't say that now, maybe it may be related to Miss Mako Miyoshi. And...and we haven't figured out what the DC in front means, Mr. Motoyasu can't leave useless information."

 "Da Capo!"

 Aizen suddenly said: "Because a friend of mine often plays the piano, I have also come into contact with a lot of music scores recently. At the back of the music score, there is a symbol like DC, and it is pronounced as Da Capo." "

 I thought of it. "

 Nanae Tsukumo said, "Because my husband likes music very much, he often plays the piano for his own entertainment and often comes into contact with music scores."

 "Back to the starting point? It means to go back to the starting point and do it again. Could it be that..."

 Eri's eyes suddenly widened, and she was shocked. The information left by Motoyasu Tsukumo means 'Back to the starting point and do it again', which means that Mako Miyoshi will do it again, that is, she will commit a crime again.

 Aizen said, "No matter what, finding Miss Mako Miyoshi is the top priority now." Kujuu

 Nanae took out her mobile phone and said, "I'll call her now."

 When Kujuu Nanae called Mako Miyoshi, Eri stood beside Aizen and whispered, "Do you have any evidence?"

 Aizen shook his head and whispered, "What evidence is there? It's been a few days. The evidence has been destroyed long ago. There is no evidence. Although Miss Mako Miyoshi is very likely the murderer, if she doesn't admit it, we have no way to deal with her. "

 "But it's okay, as long as we can prevent her from committing crimes again."

 Eri nodded. She thought so too, otherwise she wouldn't have asked Aizen if he had any evidence.

 Not long after, Nanae Tsukumo hung up the phone and said to Aizen and Eri: "Mako is with my daughter Ayano Tsukumo now. She said she went out to buy something. I asked them to come back and she agreed."

 Eri looked unhappy and said: "If the murderer is Miss Mako Miyoshi, I'm afraid Ayano Tsukumo is in danger."

 "No way?!"

 Nanae Tsukumo covered her mouth and couldn't believe it. Mako Miyoshi was very good to her daughter Ayano Tsukumo. She really couldn't believe that Mako Miyoshi would kill her own daughter.

 Aizen said: "I think we should go out and look for her. "

 Both Nanae Tsukumo and Eri did not refuse. The three of them left the basement and found Kazumi Sanada and Yuji Momochi who were in the room, and asked them to help find Mako Miyoshi.

 About six or seven minutes later, the group found Mako Miyoshi. Mako Miyoshi was walking on the road with Nanae Ayano Tsukumo on her back with her eyes closed. It seemed that she was going back to the villa.

 "Ayano Tsukumo! Ayano Tsukumo!"

 Nanae Tsukumo saw this and ran over in a hurry. Mako Miyoshi handed Nanae Ayano Tsukumo to her and said, "It seems that you all know. Don't worry, she just fell asleep temporarily."

 Then, Mako Miyoshi sneered and said, "In fact, I should let her sleep longer, just like my brother."

 "Yoshiro Kinoshita?"

 Eri had a flash of inspiration in her mind, and immediately thought of the photo that was often wiped.

 Kazumi Sanada clenched his fist and said, "Sure enough, it's Yoshiro Kinoshita!"

 Yuji Momochi looked at him and said, "Do you know something? "

 Kazumi Sanada looked at Mako Miyoshi and said, "One night, I saw Mako holding that photo very preciously. At that time, I had a feeling that something would happen, but I didn't expect Mako to kill someone." 

Aizen said, "I don't think Mr. Kinoshita Yoshiro died in an accident, right?

Mako Miyoshi gritted her teeth and said, "Yes, you are right, my brother's death was not due to an accident, he was killed by his beloved teacher Tsukumo Motoyasu."

"How is it possible?!"

Nanae Tsukumo shook her head in disbelief. She knew how much her teacher loved that student and couldn't believe that her teacher would do that.

"Nothing is impossible, I saw everything with my own eyes."

Mako Miyoshi closed her eyes and said, "On that day fourteen years ago, he tampered with the handcuffs that my brother was going to use for the performance, and during the practice afterwards, my brother drowned in the performance sink just like that, because the handcuffs could not be opened. Of course, that incident was hastily settled by the police as an accident during practice. "

"I see!"

After understanding the reason, Eri Kisaki could not help but sigh softly.

The truth was revealed. Although there was no evidence, because Mako Miyoshi was ready to surrender herself, the case was finally closed. Aizen and others called the police.

In this case, Aizen's loss was not great, only 500 sin points, and he could still afford such a small loss.

After the case was over, Aizen and Eri Kisaki left the Tsukumo Mansion with the thanks of Nanae Tsukumo.

While the car was driving, Eri Kisaki, who was sitting in the passenger seat, looked at Aizen who was driving and said: "The case can be solved this time, it still depends on you, thank you very much."