"Sayuri! Why is this happening? Matsumoto, who was stunned by the scene in front of him, no longer had the meaning of joking with the other guests, and took a few steps to run to Sayuri's side in a panic.

"Matsumoto Police! I've already called an ambulance! What you need to do now is not to roar helplessly here, but to catch the killer as soon as possible and deal with the thorny issues here. Glancing at Conan, who was pouring milk on Sayuri Matsumoto, in order not to let the Matsumoto police misunderstand him, Yuichi came out to cover up and divert his attention.

"That's right! The ambulance that can save Sayuri hasn't come yet, and I'm of no use here! Now all I have to do is catch that bastard who dares to hurt Sayuri! I'll leave it to you, Yuichi! I'm going outside to appease the guests and block the entrance, and no one is allowed to leave here until the murderer is caught! Matsumoto Police Officer, who was still a little at a loss, was also worthy of being the second-in-command of the Tokyo Metropolitan Police Department's search section, and immediately recovered after listening to Yuichi's advice, and assigned the task with a serious expression.

"Yes! Matsumoto Police! I will definitely bring the prisoners to justice! ”

"Good! You're in charge here! Twilight! Come with me to go outside to appease the others and explain why you won't let your guests leave without permission! ”

"Yes! Matsumoto Police! ”

After Matsumoto finally glanced back at Sayuri who had fallen to the ground and left, Yuichi, who had been entrusted with the task of solving the crime, also took out his rubber gloves from his pocket and began to work.

Sayuri didn't touch any food during this time, and she didn't breathe any poisonous gases, after all, Conan was still with her, and there were people in and out of this room all the time, so if this was to happen, was it really on this can of lemon tea?

Carefully lifting the lemon tea that fell aside after Sayuri fell, Yuichi twitched his nose and sniffed carefully, this astringent taste. Well? Interesting! I looked at the opening of the beverage can, and sure enough, the aluminum can had traces of corrosion, but the plastic straw had not changed, and the glass bottle I picked up in the corridor aisle, did it actually use sodium hydroxide to harm people?

But if this drink can is really filled with sodium hydroxide, a lot of heat will be released when it melts in water, and Miss Sayuri shouldn't be able to notice the slippery feeling in her mouth, but why did she just drink it? Who is this poisoner? actually let Miss Sayuri end her life so willingly. If only Miss Sayuri could reveal it herself, but unfortunately she can't provide any information based on her appearance, and even if she can, she probably won't provide it. Women are sometimes more stubborn than men in this kind of thing, but at least it is certain that the person who poisoned Sayuri should be an acquaintance, and not an ordinary acquaintance.

If that's what to do...... After glancing at Toshihiko Takasugi, who was looking at the door with a flustered face, Kazumi Takenaka, who was waiting to the side with his head bowed and pondering, and Junji Umemiya, who had an ugly face, Yuichi determined the object of his key suspicions.

Forget it, it's important to solve the case! I won't play a guessing game with you here, after all, this is a chance to show off in front of the big guys! After watching the ambulance personnel who came in a hurry to pick up Sayuri Matsumoto, he carefully handed the lemon tea in his hand to his colleagues from the forensic department who had hurriedly changed his work clothes, and Hou You opened the detective system in his mind a little.

"Case Search...... The victim Sayuri Matsumoto's vital signs are still there, and he does not meet the search conditions of the detective system's homicide case, and there are no clues in this case! Leave it up to the host to reason for themselves! ”

"System! I don't know whether to say it or not! ”

"Don't talk about it! MMP, solve the case yourself! ”

After turning off the system that maliciously sells cuteness and does not provide technical support, there is no time to complain about its service attitude, and Yuichi, who had no choice but to rely on the system to solve the case, once again focused his attention on the bridal lounge, which is the home of the Matsumoto police, and the murderer must not be able to arrange too much in advance, judging from the desiccant in the corridor, the other party is also in a hurry. So there will definitely be some incriminating evidence left at the scene that cannot be concealed.

When Yuichi set his sights on reality again, Conan, who avenged his middle school music teacher Sayuri, had a little face tangled after not having Mori Kogoro, a man who was behind the pot, and finally chose to join forces with Yuichi, who he was most reluctant to work with.

"Brother Youyi! Cameras in the garden! If you look at it from the angle of Sayuri-sensei's fall, the camera is right on her, and maybe there is evidence left by the criminal. ”

Yoo, who was still relieved by the system about the solving rate of his protagonist's cousin, smiled and ordered several police officers to carry the equipment that played the camera to the bridal lounge, ready to carefully check whether there was any important evidence inside. And Conan, who didn't have Maori Kogoro's interference, didn't have to worry about anything, and he was also attentive to observe when he lay next to Yuyi.

"The lemon tea that Kazumi Takenaka bought, and then Sayuri took it from her, and the Matsumoto police and Umenomiya Junji, who came in the middle, also touched the lemon tea successively, and finally! Well? The groom, Toshihiko Takasugi, also touched this can of lemon tea? It's really a feature of the Conan world.,It's like doing multiple-choice questions, and there are three options for ABC.。 So who will be the murderer who poisoned him? ”

"Brother Youyi! Just now when you were talking to the Matsumoto police, I found the melted half of the capsule next to Sayuri-sensei's drink can, and pointed it out to the police uncle of the forensic department to take it! If the murderer poisoned the capsule, then the time for the crime would have to be pushed forward. In this case, at least Takasugi Toshihiko and Umemiya Junji, who came in later, will not be suspicious, and that Kazumi Takenaka will be the most suspicious, because Sayuri-sensei's fiancé Takasugi Toshihiko was Kazumi Takenaka's boyfriend when he was in college, strictly speaking! Sayuri-sensei robbed her best friend's boyfriend, and if you want to talk about the motive for the crime, she also has it! ”

"Kazumi Takenaka? No, no, no, my opinion is different from yours! Conan, look carefully, when Kazumi Takenaka handed the drink to Sayuri, the lemon tea had not been opened, how did she poison it? And then she left, not touching the can of lemon tea again. ”

"If you look at it this way, wouldn't it be ...... if you have time to commit the crime?"

"Impossible! You and Matsumoto Police may have little contact, I don't know who he is, but those of us who are in the Tokyo Metropolitan Police Department basically know everything, Matsumoto Police's wife who handled the case for some reasons didn't see him until he died, and then Matsumoto Police, who felt guilty, made up all his guilt for his wife on Sayuri, his world now only has work and Sayuri, if you want to say that he is suspicious, I really can't find a reason for him to do so. ”

"But we can't be emotional! According to your own subjective will...... Counting the melting time of the capsule, he did have the most time among the suspects who touched the lemon tea......"

"What if this capsule is just a trick? In fact, sodium hydroxide does not do these treatments, it is just thrown directly into it? ”

"How is that possible? If that's the case, how can Sayuri-sensei not feel it, after all, sodium hydroxide ......"

"That's right! That's why I just showed that puzzled expression, what is the identity of this poisoner, and how much Sayuri is willing to do such a thing! ”

Just as Yuichi and Conan continued to look at the only evidence left at the scene, Toshihiko Takasugi, Kazumi Takenaka, and Junji Umenomiya, who were brought here by Yuichi secretly after reporting to the Matsumoto police, and after standing in this room for a while, they found that no one paid attention to them, and after being silent for a while, they couldn't help but chat with Xiaolan and Sonoko, who had just met on the side.

Conan, who heard their small talk, changed his expression greatly.