After launching an operation in Shikoku and leaving behind the hair of Shibara, Takato removed Shiho Miyano's disguise and burned it completely, then casually put on makeup and made himself look like a middle-aged man wearing glasses, and prepared to return to Tokyo.

At the station, waiting for the train to enter the station, Takato flipped through the latest newspapers and saw a report about the incident of a college student transporting illegal drugs on the Shinkansen the night before yesterday, and found that the previous night, he had solved the case as Miyano Shiho and had not been reported.

In this regard, Takato is not surprised, after all, whether it is reported or not, the organization already knows that "Miyano Shiho" appeared on that train.

However, where do the college students have the channels and ability to sell illegal drugs?

After reading the whole report, Gao Yuan couldn't help but shake his head - unless there was a bigger figure behind them.

For example, their mentors.

"After reasoning, start closing the case"

Thinking like this, the long-lost text of the settlement panel appeared in front of Gao Yuan.

"Comprehensive Case Closing Evaluation: S"

"Observation: S"

"Logic: S"

"Knowledge: A"

"After the settlement is completed, the overall score reaches S, the reward is 50, and additional rewards will be issued, please select:"

[Reward 1: Special Item III.]

"Reward 2: One-Time Item II."

"Reward 3: Detailed knowledge of diacetylmorphine"

"Detective Rating: Certified Detective"

[Bounty: 1340]

Looking at the settlement screen with the total rating of "S" this time, Gao Yuan silently ignored the option of "Reward Three", which was obviously a supplement to his lack of relevant knowledge, but since he had Gray Yuan's help, he didn't need this reward.

As for the option of "Reward 2", recalling that the one-time item called "Demon" before was a bit beyond the control of the immediate effect, Takato decided to be more secure and chose "Reward 1".

And the reason why the bounty is 100 points less is because on the night when Gray Plains came to Gao Yuan's house, Gao Yuan spent 100 bounty to combine the "lover" props again.

Now, the bracelet of the "lover" has long been worn on the wrist of Gray Yuanwai.

Recall that before Gao Yuan went out to carry out the operation, Gao Yuan gave the "lover" to Gray Yuan Ai, and Gray Yuan Ai seemed to be quite willing to accept this gift from Gao Yuan, showing that she liked it very much, and asked Gao Yuan to put the bracelet on her.

At this point, the special items obtained by Gao Yuan before have been used, and now, there are new special items obtained:

"Name: Tower"

"Special Effect: This is a three-story tower-like chamber that cannot be invaded without permission."

"How to receive: Based on one room, prepare the corresponding materials, and automatically assemble them according to the drawings to consume bounties (note: only one tower can exist)."

Looking at the description of this special prop, Gao Yuan was undoubtedly very pleasantly surprised. After all, the basement of his own home is worrying about how to renovate, and now he has actually received relevant rewards.

It's just that looking at the materials needed on the drawings, it seems that you have to spend a lot of money to buy them.

A little helpless, Gao Yuan couldn't help but sigh - it seems that I have to hurry up and make money when I go back.

"Ah, did you complete your operation?"

Just thinking about it, the voice of Gray Yuan mourning came from the earphones, and it seemed that because of some fatigue, Gao Yuan also heard a sleepy yawn in her words.

"Yes, almost."

This time he didn't change his voice, Gao Yuan whispered through a small microphone and whispered to Gray Yuan Ai who was far away in Tokyo, "What's the matter, Gray Yuan, did you stay up late?" ”

As he spoke, Gao Yuan asked with concern.

"Not for you."

Faintly, Gray Yuan replied.

"Moreover, Gray Plains, you are still shouting so skillfully these days."

Gray Plains seems to have completed the plan, so his tone is now a lot more relaxed.

"Being shouted by you like this, I almost really feel that my true identity is Gray Plains."

"Wouldn't it be nice to familiarize yourself with this title as soon as possible?"

Gao Yuan heard that there seemed to be some dissatisfaction in Gray Yuan's tone, so he couldn't help asking.

"That's good."

Gray Yuan said indifferently, "But I always feel that you are too familiar with this surname, have you known people with this surname before?" ”

"Nope."

Takato explained, "It's just that when I wanted a pseudonym before, I imagined this surname, which is derived from P· D The surname associated with the word 'Gray' in Detective Cordelia Gray's book by James. ”

"Huh? Is it based on the detective's name in the reasoning? ”

Hearing Gao Yuan say this, Gray Yuan Ai seemed to be a little happy, and continued with a slight smile, "So, does 'wise' come from that famous detective written by Edogawa Ranbu?" ”

"Yes......"

Naturally, Gao Yuan responded to Gray Yuan's question, but soon realized something, and immediately changed his words:

"I'm also very satisfied with the surname that my parents left me, which happens to be the last name of the detective!"

However, hearing the brief pause and some stiff turns, at Dr. Asasa's house, the corners of Gray Yuanai's mouth couldn't help but rise slightly at this time - I see, wise and lofty, it's also a fake name!

"Okay, let's not talk about that."

After a pause, Gray Yuan changed the subject, "Wise! You asked me to investigate the information of Sawaguchi Mayu, I seem to have found something! ”

"Hey! Really! ”

Hearing this, Gao Yuan couldn't help but say with some surprise.

"That's right."

Ash Yuan confirmed, "I found some strange emails in Sawaguchi's emails. ”

"Huh?"

Hearing what Gray Yuan said this, Gao Yuan recalled the Sawakou Mayu mailbox that he had browsed before, and wondered, "Is there such an email?" ”

"Ah, it looks like Mr. Detective didn't find out before."

Listening to Gao Yuan's puzzled tone, Gray Yuan said with a faint smile, "But I can't blame you, after all, you don't understand pharmacology!" ”

In this regard, Gao Yuan simply stopped speaking, and waited for Gray Yuan to explain.

"In the emails exchanged by Sawaguchi Shinyu, there is a mailbox that sends a paper that seems to be cutting-edge pharmacology to Sawaguchi Shinyu every year, and it is also collected by Sawaguchi Shinyu."

Listening to what Gray Yuan said so, Gao Yuan remembered that Sawaguchi Mayu's mailbox did focus on collecting a lot of emails about pharmacology-related papers exchanged with other email numbers, but because Gao Yuan didn't understand pharmacology at all, and the format of the paper was extremely formal, Gao Yuan didn't care when he read it.

"The paper sent to Sawaguchi Mayu with this email number does look very much like a regular paper at a rough glance, but if you look closely at the pharmaceutical equations in it, you will find that some of the equations are completely out of line with the rules."

Gray Yuan said as he opened the paper on the computer.

"As long as it is a paper sent by this email number, every paper has such a problem. And the strangest thing is that most of the content in the paper is fine, but in the paper that is fine, there is a small paragraph of problematic content. So, I have a feeling that the content of this error may be ......"

"Password!"

Somewhat surprised, but also pleasantly surprised, Gao Yuan answered.

"yes, that's what I think."

As he spoke, Gray Yuan Ai screened out the time when the email occurred in Sawaguchi Mayu's mailbox.

"Also, it's very suspicious that this mailbox number has been sending emails to Shinyu Sawaguchi since sixteen years ago, once a year, very punctual, but I haven't received it this year!"