……

When Conan and Mori Kogoro ran to the place where the lady was desperately shouting, what they saw was that the bathroom door was directly sealed with duct tape, and they couldn't see the slightest situation inside from the outside.

Seeing the young lady who kept knocking on the door, Mori Kogoro said in surprise. "Don't you say. It was locked from the inside. ”

"Impossible!" The young lady was tired and panting and said, "We don't have a key to this door at all, it seems that the door has been taped from the inside." ”

Mori Kogoro and Conan, on closer inspection, are indeed as the young lady said.

"Alright, let's push the door open."

“1～2～3～”

Ran, Mori Kogoro and the young lady slammed the door open. It turned out to be the young lady named Mina, who was lying on the edge of the bath, covered in blood.

Mori Kogoro is very experienced, and when he stepped forward to feel his pulse, the result was that Miss Miina had stopped breathing, and the only thing he could see was that his wrists were covered with marks of being cut by a knife.

"Is this a suicide?"

That Meina's sister, because of her sister's death, fell into a situation of crying silently. Ran was busy calling the police, and Mori Kogoro was doing his best to search for useful information.

Conan was also looking around, because this crime scene always gave him a strange feeling.

The window in the bathroom, and the doorway. The cracks in the door were taped together. Even on the floor of the bathroom, there are two kinds of lids, which are filled with open bathroom cleaner.

"Is this really a suicide?" Conan thought a little confused.

After looking at it carefully, the wound on the deceased's hand, Conan felt a little suspicious, suicide and cutting his wrists, it shouldn't be such a situation.

This is definitely not suicide, but homicide!

But what Conan couldn't understand was how the murderer got out of the bathroom, and how did he escape when the space was obviously sealed with tape?

…………

Taiichi, who was smiling proudly on the other side, had already taken the developed photos and went to Yoko Okino's concert. And the invitation ticket in his hand is the one dropped by Maori Kogoro.

"Well~~~ I remember Ayumi, I like Yoko Okino more, if she gets a signed photo this time, I think she will be very happy."

And Taiyi, who was full of joy, didn't know that the two Grim Reapers, Mori Kogoro and Conan, had provoked another murder case, and the really hard police officer Twilight was summoned to the scene by them again.

"The deceased's name is Qingdao Qingcai."

"I'm 24 years old. The cause of death was a stab wound to the wrist of the left hand. Accompanied by rupture of the arteries, resulting in blood loss. ”

"As for the discovery of the deceased, it was her sister Miss Quandai."

"That's you!" Officer Twilight asked, holding his fat belly and looking at him with a majestic face.

"Hmm~~" The young lady nodded in a trance.

"What else?" Officer Twilight looked at him with a little headache, and Mori Kogoro asked, "That's because I happened here, this .........?"

"Aha~~~" Maori Kogoro scratched his head pretending not to care, "It's my famous detective, Maori Kogoro." ”

"I said Officer Twilight," Mori Kogoro said with a bit of familiarity, "and to be honest, it's because of Miss Quandai's request that we drove here to pick up her sister Mina." ”

"When we found out that something wasn't quite right in the bathroom, we rushed into the bathroom."

"What do you mean by that?" Officer Twilight looked around the bathroom, "I mean the doors and windows of this bathroom are covered with duct tape, right?" ”

"The tape covered all the gaps from the inside of the bathroom, making it a complete secret room." Mori Kogoro said directly.

"I think it's a suicide, and I can't go wrong."

"However, common sense inference." Officer Twilight stroked his fat chin with his hand, "A man who committed suicide by cutting his wrists, why did he completely seal this place?" ”

"I think it's because the deceased thought that the relationship between hydrochloric acid and acidic bathroom cleaners will be produced after mixing, and toxic hydrochloric acid gases will be produced."

Mori Kogoro brought the two bottles of evidence and bathroom cleaner in his hand to Officer Twilight.

"She sealed it so it wouldn't let the gas out."

"But Maori brother!" Officer Twilight said helplessly, "Both of these are obviously hydrochloric acid cleaners." ”

"Besides, if there is really hydrochloric acid gas, even if it is all sealed, it will be useless."

"Officer Twilight." Mori Kogoro said triumphantly, "This dead Miss Mina is not like us, she is an expert in this area. ”

"How did she know how powerful hydrochloric acid gas was?"

"That's it~~~" Officer Twilight, who had no opinion at all, was directly taken to the pit by Maori Kogoro.

"And I still think." Mori Kogoro gave another strong example. "Before this Miss Mina committed suicide, .nt was already a little mentally deranged."

"I think it should be like this~~~" Kogoro Mori directly began his own reasoning. "Once she's planning to commit suicide, she'll have these two bathroom cleaners ready."

"As for the fact that she would seal all the gaps in the bathroom. It was because she noticed it when the gas was being produced. ”

"She found that what she bought back was not two different ones at all, bathroom cleaners."

So, when there was nothing else she could do, she used the razor she already used in the bathroom to cut her wrists.

"Then, put your hands in the hot water again so that you can die of blood loss."

"Officer Twilight~~" Mori Kogoro took out a sticky note from his pocket. "Please look at this, this is the invoice that fell in the living room."

"Two bathroom cleaners here. There is also duct tape, which was bought by Miss Meicai at the convenience store last night. ”

"This is strong evidence that she wants to kill herself and rushes to prepare."

Officer Twilight hurriedly took the invoice in Mori Kogoro's hand, looked at it carefully, and shouted out the door.

"Brother Takagi~~~"

"Hi~~~"

"You go to this convenience store and check with them about it."

"I'll go right away." Officer Takagi quickly took the invoice and walked outside.

Officer Twilight thought for a moment and said, "We've found the unused part of the tape from the tub. ”

"If Miss Mina really did all this in a hurry, then it is understandable that she didn't take these things into account."

“……… But this sister is in a hurry! Conan said to Officer Twilight, who had already been taken to the ditch by Kogoro Mori. (Once Literature Network,)