The lady of Ikemura quickly explained her intentions:

It turned out that she and her husband, who was a diplomat, had a bit of a dislike for the future daughter-in-law named Sachiko Katsuragi.

That's why I wanted to ask Detective Kogoro Maori, who is known as the "Little Three Nemesis" and "Friend of the Bitter Lord", to investigate Miss Sachiko Katsuragi, who is about to marry into the Ikemura family, to see if there is any black material behind her.

That's probably all Ikemura said in the office.

As for the more specific situation, she would like to invite Kogoro Mori to her home and talk to her husband, Mr. Isao Ikemura, in person.

Mori Kogoro nodded in agreement, and Mori Lan was slightly curious about the gossip of the Ikemura family, so he went along.

As for Conan... He seemed to have recovered from the strength of the wine just now, and his spirits were a little better, so he pestered to go out with Sister Xiaolan.

"Let me go too."

Seeing that the Maori family was leaving, Hattori Heiji suddenly said this.

"What are you doing here?" Maolilan was a little puzzled.

"It's easy to get things done when there are so many people..."

Actually, Heiji Hattori just wanted to stay with Moriran as much as possible.

In this way, if there is a case anywhere, Mao Lilan receives a notice from the police, and he can also follow to the scene of the crime as soon as possible.

However, he thought so in his heart, but he didn't show it at all:

"My daughters in high school have such a reputation, and this Maori uncle's reasoning ability must not be underestimated."

"As a detective in Osaka, I want to see for myself how a detective in Tokyo works."

Hattori said without changing his face.

"Uh, detective... Do you mean me? ”

Mori Kogoro reacted in hindsight, and then let out a burst of laughter:

"Hahahaha... Boy, you're quite discerning! ”

"Very good, then you can follow me and observe and learn!"

He put on the appearance of a senior in the industry and agreed to Hattori's request with a big package.

"Hey, hey... Completely taken advantage of, uncle! ”

Seeing his father-in-law's honest appearance of being played around, Conan's little face was full of helplessness.

Look at the treacherous Mr. Heiji Hattori who secretly laughed, his eyes were even more full of resentment:

This bastard... He even fed white wine to children.

Not... Is there some mess in that wine?

I feel like my body is getting a little weird.

.................................

Under the leadership of Mrs. Ikemura Gongjiang, the group came to the Ikemura family's mansion.

This is a very magnificent single-family villa, whether it is space, decoration or location, it is worthy of the identity of the male host, Isao Ikemura, as a high-ranking official of the Ministry of Foreign Affairs.

Opening the door, Ikemura Gonge took Kogoro and the others straight through the entrance.

I bumped into a young couple head-on, it was Mrs. Ikemura who had mentioned when she gave the commission before, the young master of the Ikemura family, Ikemura Takazen, and his girlfriend Sachiko Katsuragi.

"Why are you here?!"

When she saw the young and beautiful future daughter-in-law, Mrs. Ikemura's expression was a little ugly.

"I called Sachiko, Mom." Ikemura Takazen smiled and said:

"Because my dad has always been reluctant to see Sachiko, I had to take the initiative to create opportunities."

"But Daddy, he is now staying in the study on the second floor by himself and not going out, and he has closed the door."

"Mom, why don't you call him out and meet Sachiko?"

Mrs. Ikemura was silent for a while, and her face became more and more gloomy.

In the end, she glared at Sachiko Katsuragi viciously and said in a very mean tone:

"Next time, don't take it upon yourself to let Guishan bring you to the house!"

"Guishan's father and I haven't agreed to this family affair yet!"

"I—" Miss Sachiko Katsuragi couldn't help but shrink her head in fright: "I'm sorry. ”

"Humph!" Mrs. Ikemura put on the posture of a wicked mother-in-law.

She didn't look at the future daughter-in-law much, but walked straight to the second floor with Kogoro and the others:

"Let's go, let's go upstairs and meet my husband."

The group ascended the stairs to the second floor and met an old man who looked 7 or 80 years old.

"Dad, why are you here?"

Mrs. Ikemura revealed the identity of the old man, who was the father of diplomat Isao Ikemura, Toshimitsu Ikemura.

"Hmm..."Mr. Toshimitsu Ikemura asked with some confusion, "Gongjiang... Didn't you make an appointment with me to talk about fishing? ”

"Oh... Right. Mrs. Ikemura thought for a moment, "Then Dad, you go to the Japanese's room and wait for me first, and I'll look for you later." ”

"Okay." Ikemura Toshimitsu nodded, said hello to Kogoro and the others who were guests, and walked downstairs on his own.

Finally, under the leadership of Mrs. Ikemura, the group came to the door of the study on the second floor.

"Opera music is playing inside? The volume seems to be a bit loud..."Hattori Heiji was a little curious.

"My husband usually likes to listen to opera alone in the study at a loud volume, and that's fine."

Mrs. Ikemura replied with an unchanging face, and as she took out the key she had brought with her, she opened the door to the locked study.

As soon as the door was opened, everyone could see from afar:

The chubby Mr. Ikemura was sitting at a table with books piled high, his chin propped up with one hand, dozing off profusely.

"Husband? Husband? Are you asleep..."

"It's time to wake up, the guests have arrived."

Mrs. Ikemura shouted tentatively twice, and then stepped forward alone, trying to wake up Mr. Ikemura, who looked at him who was already asleep.

And she had just come to Ikemura's side, and she shook it lightly twice...

Ikemura's chubby body, like a collapsed mountain, slipped weakly off the table.

"Husband? What happened to you!! ”

Lady Ikemura's face suddenly appeared with fear.

She hurriedly knelt beside her husband, who was slumped to the ground, shaking his body helplessly.

But Mr. Ikemura was completely unconscious, and no matter how he shook it, he didn't react.

"W-What?!"

Xiao Goro and the others who were standing outside the door suddenly changed their faces.

And the fastest response was Hattori Heiji.

He was like a shark that smelled blood, and he rushed forward in one breath without any hesitation.

The detective from Osaka quickly ran to the fallen Mr. Ikemura and squatted down, tested his breathing and pulse with a very professional technique, and observed his dilated pupils:

"It's too late... The man is dead. ”

Hattori Heiji gave a death notice with a serious expression.

"How, how can this be?" Mrs. Ikemura was frightened and said incoherently: "How could my husband die?!" ”

Heiji Hattori did not answer this non-nutritious question.

He hurried up and took a closer look at the corpse:

"The muscles are relaxed, there are no corpse zombie spots, and there is still residual warmth on the exposed face, hands and feet."

"The time of death will not exceed half an hour at most."

"The man died recently."

"And the way of death is..."

With little effort, Heiji Hattori spotted a small pinhole in Isao Ikemura's neck.

And next to his corpse, a poisonous needle fell to the ground.

"It's poison."

Heiji Hattori quickly confirmed the cause of death of the deceased.

Then, trying to pad his hand with a tissue, he went to the pocket of the deceased's trousers, and soon found a key:

"This key... It's very similar to the study key that Mrs. Ikemura took out just now. ”

"Is it also the key to the study?"

Hattori's thoughts were like electricity, and then he turned to Mrs. Ikemura and asked:

"Mrs. Ikemura, how many keys do you have for your study?"

"Two, two." Mrs. Ikemura said in a frightened voice:

"One I carry with me, and the other... The other one is the one you just turned over from my husband. ”

"Oh?" A gleam flashed in Hattori's eyes:

"Mrs. Ikemura was not at home for the past half hour, and the key was carried with her by her, and it was impossible for the murderer to get it."

"And the second remaining key was placed in the locked study, in the trouser pocket of the deceased himself."

"That is, this case is..."

"Murder in a closed room?"

When I thought of these four words, it was like a drunkard meeting Moutai and smoking a cigarette gun, and Hattori Heiji suddenly came to his senses:

Murder in a closed room, which means that the murderer has designed a ruse and a secret room-

This is undoubtedly the home of the detectives!

In this case, it is just right for him to give full play to his advantages.

And when a Ministry of Foreign Affairs official was killed, Mao Lilan, a student, happened to be present, and it was impossible for Lin Shinichi, as the management officer of the forensic class and the teacher of Mao Lilan, to sit idly by.

"It's the perfect matchup."

"Looks like it's time for me to show off my real skills!"

Thinking about it, a confident smile couldn't help but appear on the corner of Hattori's mouth.

And he was so smug as he thought...

Suddenly, he felt empty in his hands.

The key, which he held in his hand and wrapped in a tissue, was snatched away.

"Hey... Mr. Hattori. ”

"Don't touch the evidence on the deceased!"

Moriran carefully held the key in her gloved hand and gently placed it in the plastic evidence bag she carried with her.

And throughout the process, her gaze at Hattori Heiji was filled with a well-disguised disgust:

"How can idle people casually enter the scene of the crime?"

"Since it's confirmed that it's a homicide, you should consciously leave the room and protect the scene!"

"Uh..."Hattori Heiji was slightly stunned: "It's the same." ”

Then, he turned his head straight and said to Mrs. Ikemura beside him:

"Mrs. Ikemura, please wait outside the study with everyone!"

"Okay..."Mrs. Ikemura reacted sneeringly, got up and walked out of the study.

And Hattori Heiji was about to look back at the scene again, but found that Mao Lilan was looking at him with a strange expression:

"Mr. Hattori, when I say 'miscellaneous people, etc.' I mean also you."

"Huh? Let me out? Hattori Heiji pointed to his black face full of surprise: "How can I be an idle person?" ”

"I'm a famous high school detective!"

"A high school student, not an idler, etc.?" Maoriland didn't give an inch.

"Aren't you also a high school student?" Hattori Heiji's face darkened even more with anger.

"I have a letter of honor from the Metropolitan Police Department." Mao Lilan said confidently: "Strictly speaking, I, like Mr. Lin Xinyi, am also a supernumerary member of the identification class. ”

Yes, after she became popular under the name of "beautiful girl forensic doctor", the Metropolitan Police Department used the same trick to recruit Lin Xinyi, and decisively included this rising star in advance.

Miss Maori now also has an honorary police position that is effectively a temporary worker, and she also receives a monthly salary.

"This..."Heiji Hattori is a little unaccustomed.

He'd never been kicked out of the scene of a crime before.

Although strictly speaking, it is the normal procedure of the police to kick him out.

"Don't be stunned!"

"Don't mess around at the scene and disturb my daughter's case!"

Mori Kogoro stepped forward very unceremoniously and invited Hattori Heiji, who was not leaving, out.

"Dad, and you..."Mao Lilan's gaze was very subtle.

"Know, know..."

"You look into the case well, I'll go out now."

After a period of adaptation, Mr. Kogoro has completely lost his dignity as a father.

As for Conan...

Thanks to the lesson that Lin Xinyi had taught him before, he can now stand outside the door very consciously and be a good child.

It's just that even if he barely resisted the desire to solve the case, Conan's mind couldn't help but focus on the case.

Especially, when I saw the confident glint in that Hattori Heiji's eyes.

"Xiaolan..."

Feeling the surging battle intent in Hattori's eyes, Conan was faintly worried:

"Without my help..."

"Can you win this matchup?"