"Dangdang. Mizuma knocked lightly on the door, but no one answered inside.

“duang，duang，duang。 I tried some strength to knock again, but no one responded.

Three black lines flowed down from Shui Jianyue's head, and she knocked three more times, it was like picking up a fist and smashing it three times.

"Bang, bang, bang!"

Just when Mizuma Yue wondered if the people inside had absconded or committed suicide in fear of sin, Koshisui Nanatsuki finally opened the door, and the headphones wrapped around his neck and music came out, explaining why its owner had not heard the knock on the door for a long time, Koshisui Nanatsuki tilted his neck and looked at Mizuma with a cute face.

The music is an English song, bass.

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In Hattori's room, Hattori Heiji sat upside down on a chair and looked at Conan lying on the bed boredly: "Work...... Yes...... Who's that, what do you say that person is doing now?"

"Let me think about it......" Conan shook his legs, "I think he must be doing something related to his hobbies." ”

"Eh, shouldn't it be constantly sorting out whether there are any omissions in your actions?" Heiji Hattori disagreed with Conan's opinion.

"That's all stupid thieves. Conan hit Hattori Heiji to the stupid thief's thinking with one shot: "I think that since I am a detective, I should try to calm myself down, so as not to let people see the difference in my emotions, and since I can't participate in solving the case, I will try my best to show my indifference to the case, and empathize with me, I must be playing football desperately." ”

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Koshisui Nanatsuki's room, Koshisui Nanatsuki looked at Mizuma with dissatisfaction: "What are the police officers doing again? Is there anything else you want to ask? Could it be that you want to check my luggage again?" Speaking of this, Koshisui Nanatsuki looked at Mizuma Moon like a hooligan.

"We'll talk about whether to check your luggage later, first of all, I have some questions I want to ask you for your wisdom as a detective in the South. Mizuma said with a smile.

"Saying that, I really want to rummage through the girl's luggage. Koshisui Nanatsuki looked at Mizuma with disdain.

Even though he knew that this was a psychological tactic deliberately done by Nanatsuki Koshisui, Mizuma Moon was still made to cry and laugh, and he couldn't do it if he wanted to keep a straight face, so he had to wave his hand: "It's better to get down to business." ”

"Okay, okay, but the police officer who just looked disgusted with the detective came to ask for wisdom so quickly, how should people evaluate it?" Nanatsuki Koshisui looked at Mizuma sarcastically.

"What do you say?" Mizuma looked at Nanatsuki playfully, making Nanatsuki feel furious.

"Speak. Koshisui Nanatsuki said honestly.

"Judging from the bloodstains we found at the scene, the victim's bloodstains should have been firmly sprayed on the murderer's body, but none of you in the mansion were wearing a bloody suit, what to understand?" Mizumayue asked solemnly, and it was also the biggest card that determined the identity of the murderer.

"It's not easy, you just need to wear a raincoat or something like that to block the bloodstains, and then it's very convenient to discard or clean the bloodstains. "Nanatsuki Koshisui has an expression of officer, haven't you ever handled a case?

"But the deceased was also a well-known detective, so he naturally knew this truth, since he was hit in the back of the head, it means that he was defenseless against the visitor, and if the visitor was wearing a raincoat, he would be more vigilant, right?" Mizumatsuki asked again.

"I don't know, maybe the murderer isn't between us, and he's still wandering somewhere outside the mansion?" Nanatsuki Koshimizu's tone was like telling a midnight ghost story from a slumber party.

"My personal thought is, could it be that the murderer changed his clothes after killing someone?" Mizuma said seriously, as if he was really asking for advice from Nanatsuki Koshizui.

"You're a good idea!" "Nanatsuki Koshisui snapped his fingers excitedly: "I, Hei-kun, and this fake director have all changed their clothes, but because I and Hei-kun need to be on the show, only that imposter got the wine on his clothes and went back to the room to change his clothes!"

"Well, it's not necessarily about changing clothes after killing someone. Nanatsuki changed his words: "Maybe you can change your clothes first, and then change back after killing people." It's very possible that Mr. Koya, who has never been seen in the kitchen and has a lot of time, and the one named Hakuba, said that the school where he studied abroad did not have a school uniform, but in fact, who knows? Maybe he changed into a school uniform and went to find Tokitsu Junya, and the two of them had a quarrel and killed people in a passionate manner, and he temporarily thought of a way to cover up the past and then changed his clothes back, so the police officer, your task will be much heavier!" Nanatsuki's expression was completely gloating.

"But at least it means that there is a bloody coat, that's always true, right?"

"No matter where it is hidden, it can be found, first look for the luggage, and if you can't find it in the luggage, you can find it in the mansion. ”

"As long as the murderer is from the mansion, there is no chance to dig a pit in the depths of the uninhabited island outside and bury the bloody clothes, and sooner or later you can arrive here early. ”

"Aren't there a lot of detectives here, and it's good to cross each other to help with the search, and the detectives always know more about how to hide things than the police. This sentence is already half-clear to point out that the murderer is a detective.

As Mizumatsuki's words fell, Nanatsuki's smile froze little by little.

"It seems that Officer Mizuma thinks I'm the murderer, can I ask why?" asked Nanatsuki Koshimizuki.

"The first is that you lie about your age, although the people here don't know you, but whether you are a high school student or not actually just need to know about it, the Detective Koshien show should not have invited you in the first place, unless you are the murderer's murder target, or you are the murderer. After substituting this point of view, the hammer found behind the kitchen drain and the screw tail under the Hiroshi window will feel a strong sense of blame. Mizuma shook her fingers.

"If I add after my age is revealed, because the organizers can't find a high-school detective of the right age in the south, so they want me to replace me not long after graduation, will the suspicion be reduced?" Nanatsuki Koshisui smiled bitterly, his ability to adapt to changes was still not enough.

"Who knows, there's a second suspicion anyway. Mizuma Moon stretched out a second finger: "In order to create the mystery of the show and catch the detectives off guard, the contestants were not given an approximate time schedule before the so-called show started, and you who had already thought that you should wear school uniforms for the Koshien project chose to take your clothes to the island to change." ”

"The rest of the people are still easy to say, because the school rules are cumbersome, so it takes a lot of time to tidy up the school uniforms, aren't you afraid that you will start recording the show as soon as you get on the island?"

"Because the reason why this time is arranged like this is that I deliberately set aside time for that bastard to be handsome, to arrange my own death chamber myself, and then to go and calmly change his clothes after killing him, police officer, do you think so? But what about the evidence?"

Mizuma turned her head to look at the large suitcase of Koshisui Nanatsuki, and the meaning was obvious.

"Okay, okay, I'll open it for you!" Nanatsuki looked impatient, and squirmed to the front of the suitcase to open it.

"Why do I look like a perverted uncle...... Mizuma Moon was made to smile wryly by the appearance of Nanatsuki Koshimizu.

"Well, this is the clothes I wear, if you don't believe me, ask the others. "Finding the morning's clothes, Koshisui Nanatsuki generously handed it to Mizumatsuki.

The gloved hand took the clothes, and Mizuma Moon wrinkled every day: "Why is it a little wet?"

"It's raining, okay? There's no place to dry your clothes, so you don't want to spread them out on the bed, so you have to stuff them in first. "Nanatsuki looks like you're making a fuss.

"Do you mind?" Mizuma Moon magically said, with a small bottle of luminol spray in his hand.

"This thing isn't easy to wash, is it?" Nanatsuki smiled and muttered quietly, then gave up: "Whatever, whatever you want!" and waved his hand like a fly.

Whew-Mizuma unceremoniously sprayed the luminol reagent.

"What the hell!" the reagent sprayed up, and instead of proving innocence, it did not show the mottled traces of the crime, but the entire garment emitted a strong blue fluorescence.

"What did you do?" asked Mizumazuki angrily, but she was a little overwhelmed.

"I didn't do anything! By the way, I remembered, I like to use some bleach when I wash my clothes, maybe it's because of the residue of bleach, don't you know? In addition to reacting with hemoglobin, luminol reagent can also react with elements such as copper and iron, as well as bleach, which has strong oxidizing properties, so let's get something accurate in the future! Don't wronged any innocent people again. The sad look on Nanatsuki's face just now was gone, replaced by a smile that had succeeded in mischievous.

"Hehe, even if you are good at chemistry, then this dress will be sealed by the police for a week, and it will be returned to you after a week of identification. Mizuma didn't understand what she was proud of.

"What do you mean...... How can there be such a person?" "Koshisui Nanatsuki's face was like a performance change, and it just dispersed as soon as she got proud, but she still didn't forget to pretend that Mizuma Moon was going to take away the girl's clothes and do some kind of obscene thing......

"Well, you don't know, do you? The bleaching powder will disappear after three to five days, and the blood stains will still be detectable at that time, and if you test it in the police laboratory, you will not be wronged, it should be blood, and if it is anything else, it will not be blood. "Mizuma Moon still looks weak, but she cut off the last move of the Mizumi Nanatsuki.

Feeling that the strength of his whole body was gone, Nanatsuki Koshisui collapsed on the bed regardless of his image, and complained: "Why is it the same policeman, you know it so clearly!"

"Oh, so my colleagues in the South are confused about the case. Mizuma asked casually.

"It's not the South, it's the North, the bastards of Shikoku. "Koshisui Nanatsuki begins to tell a story from a long time ago.

Naturally, the story told by Nanatsuki is her motive for committing the crime, and generally this kind of content Mizuma Moon has never been interested in listening to more, but maybe this story involves the police, so Mizuma Yue didn't stop her, but quietly listened to her story.

There is also the case of hiding the corpse in the temple a few days ago, and Mizuma Yue also listened curiously to the motives of the old monk to hide the corpse, maybe it can only be said that people will really change slowly.

After Koshisui Nanatsuki finished speaking, Mizuma Moon was silent for a long time, and said: "It's been a long time since the incident, and I'm afraid there is no way to re-evaluate your friend's case, but if Hiroo Tsuyo confesses that there is still a chance, at least what I can do may be to apologize to you and your friends for my colleagues in Shikoku, I'm sorry." Mizuma solemnly apologized to Nanatsuki Koshisui.

"Take me away. Nanatsuki Koshisui stretched out his hands and waited to be handcuffed: "I'm thinking now, a policeman like you, who resolutely excludes the influence of detectives and only trusts his own judgment, may also have a lot of merit." ”

"Hey, as long as I'm still on the job for a day, I'll never let the detective mess with the case I'm working on. Mizuma smiled confidently.

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On the boat back on land, Mizuma relayed the cause and effect of the case to the officers, and Conan listened to it.

"Okay, let me ask you, what experience have you learned in this case?"

"Hmm...... In the case of insufficient personnel, the division of labor according to importance and workload is carefully divided?" Shiratori was the first to reply as a police supplement.

"Good at using your brain?" replied Moriya, who felt that he had a credit for connecting the bloodstains to the murderer.

"Optimistic about the weather at any time?" Kato Kumanshin is purely shameless and messes around.

"It's all wrong!" Shui Jianyue denied with a hint of excitement: "This case tells us that detectives can also handle wrong cases! Detectives will also be murderers! So no one is allowed to give me superstitious detectives, do you understand?"

"Understood!" the officers wanted to laugh, but Mizuma Tsuki's appearance was too serious to laugh.

"Poof. Conan, a (former) detective, laughed straight out.

Mizuma Moon is a policeman who hates detectives so much, and it's probably something that will never change.