Ke Xue: I picked up a bottle of sherry at the beginning.

"Just go and take a look and you'll know." Quan Yi chuckled.

Everyone walked to the pond where they had started.

"The body is gone," Conan said softly.

"It seems that someone has already understood this matter." Quan Yi turned his gaze to a stone beside him.

"It seems so." Following a female voice, Duisharina appeared from behind a rock on the other side. Unlike before, she was dressed much more neatly. Her coat was gone, and she was wearing a tight vest. Her whole body was soaked. "You go to the other side of the waterfall and take a look."

"The other side of the waterfall?" Ayumi and the others blinked their eyes, led their people around to the back of the waterfall, and couldn't help but screamed.

On the other side of the waterfall, there is a piece of paper fixed to the stone with a knife. In the lower right corner of the note, a cartoon image of a smiling Kidd is clearly visible. As for the author of the note, it is self-evident.

"'I took the Nioh Stone.'" Conan looked at the note and laughed for some reason.

"You truly are worthy of being a world-renowned thief." At some point, the old lady who had left earlier returned and said with a smile, "If it were stolen by the world-famous Kaito Kidd, I'm sure Jiji Kiemon wouldn't be disappointed."

Quan Yi couldn't help but roll his eyes...

(You're so shameless when you brag about yourself...)

"Old lady, you haven't left yet..." Genta also complained, and his body leaned back by inertia. Mitsuhiko, who was originally standing on the protruding stone behind Genta, slipped and lost his balance.

Seeing that Mitsuhiko was about to fall into the water, Quan Yi grabbed Mitsuhiko and said, "Be careful."

"Huh..." Mitsuhiko and the children breathed a sigh of relief.

"Well, it looks like we've come here for nothing." Sudo Yunzo looked depressed and waved his hand, "Let's go."

"It can't be considered a wasted trip." Quan Yi smiled.

Hearing this, Sudo Yunzo, who was about to leave, stopped and said with a puzzled look: "What do you mean by this, little brother?"

"Well... I'll explain it to you later." Quan Yi smiled, "Can I borrow your flashlight, uncle?"

"Hmm...?" Although Sudo Yunzo was confused, he still handed the flashlight to Izumi.

"What do you mean specifically..." Quan Yi smiled, and suddenly jumped up, throwing the flashlight in his hand out, aiming directly at Duishalina who was sitting on the stone.

Quan Yi was fast, but Duisharina was no pushover. Though barely able to dodge the flashlight Quan Yi threw at her, she pulled out the pistol she'd hidden, her expression grim.

"go to hell!"

But the next moment, her expression froze on her face, the pistol in her hand fell weakly, and she closed her eyes and fell asleep.

Conan proudly retracted the sight of the watch-shaped tranquilizer gun.

"This is..." Sudo Yunzo and the children had not yet reacted.

"Don't you find it strange?" Izumi explained as he walked over and picked up the pistol that Duisharina had dropped. "Why was she able to guess so quickly that the magatama we found had the word 'flame' on it?"

"The only explanation is that she knows about or has seen the magatama. And when you think about the treasure hunter, Mr. Terunaga Tamai, who died here before, her identity becomes clear."

"That unreliable and ruthless partner?" Ai continued.

"That's right." Izumi smiled. "Come and help, Mr. Sudo Yunzo. If you send this murderer to the police station, you can get a reward."

After the matter was over, Kuroba Kaito obediently presented the Nioh Stone to Shiraizumi Masu.

"Brother Quan Yi, what do you want the Nio Stone for? Aren't you not interested in gemstones?"

"I'm going to give it to you and give it to your mother to please her."

Bai Quanyi smiled.

"Ah? Brother Quan Yi, you really are going too far."

Kuroba Kaito said unhappily.

Undercover Delinquent Academy

At the Tokyo Metropolitan Police Department, a member of parliament came with his wife to report a case.

Their daughter, Kaho Mizushima, has gone missing, and the Metropolitan Police Department is taking this case very seriously because she is the daughter of a councilor. They assign the department's best detective, Masu Shiraizumi, to investigate the case full-time and make sure to find Councilor Mizushima's daughter.

Shiraizumi Masu did not delay, as this was his job, so he went to Teitan High School to investigate the matter about Mizushima Kaho.

After inquiring, it was found that Mizushima Kaho was a second-year female student at Teitan High School. She was honest, shy and inconspicuous, and had few friends.

Suddenly, he disappeared.

We learned more from Mizushima Kaho's classmates that before she disappeared, she had a boyfriend.

This boyfriend is a student from another school. As for who he is, Mizushima Kaho’s classmates don’t know.

So, Shiraizumi retrieved the surveillance footage at the gate of Teitan High School and discovered that before Mizushima Kaho disappeared, she did have frequent interactions with a young man.

The young man was wearing a school uniform and seemed to be a student.

Judging from the style of the male school uniform, Bai Quanyi judged that the man was from the Black Copper School.

The Kurogane School is very famous in Tokyo. It is the worst school in Tokyo and the base camp of the bad 27 students. It is even called a preparatory school for the underworld.

This school is open to all students regardless of their academic performance, but the tuition is extremely high, making it unaffordable for most people. No decent person would spend a fortune to attend such a poor school.

Bai Quanyi felt that this school was not simple, so he used his connections in both the black and white worlds and entered the school as a transfer student to investigate.

The school is very big, but there are not many students. Many classrooms are even empty.

Bai Quanyi is in the third grade.

Bai Quanyi suddenly transferred to Heitong School. The principal was very suspicious and specially found Bai Quanyi.

The principal is Hirugawa Keizo. Because his consciousness as a teacher is weak and his parents' evaluation is not good, he does not stay in one place and travels to various schools.

The school, which was almost always plagued by a shortage of teachers and was full of bad problems, finally found stability after taking a position at Kurogane School, where he felt like a fish in water.

Hirikawa Keizo, a man with a love affair with both lecherous and gambling addictions, divorced his wife six years ago out of dislike. His servile and cunning personality perfectly matched Suzuki Jikichiro's needs, and he became the principal of the Kurodo School. He oversaw the overall education of the female teachers, ensuring they received a thorough education.

When Shiraizumi Yoshi faced Hirikawa Keizo, he was really ugly, fat and bald, with a face full of flesh, which was very disgusting.

"Baiquan Yi, I don't know why you suddenly transferred to our school."

"I heard that Black Copper School is known as a preparatory school for the underworld, so I immediately wanted to transfer to Black Copper School and get some real learning in my final year."

Hirikawa Keizo was very satisfied after hearing what Shiraizumi Masu said.

"I see... But if you want to become a good yakuza, you need to learn from the school president?"

"Eh? Why don't you study with the teacher?"

Hirikawa Keizo gave a disgusting smile: "Because in the Black Copper School, teachers are just tools for students' growth."

Then, a female teacher walked into the principal's office.

Hirikawa Keizo said to the female teacher: "Ms. Okita, this is a new transfer student in your class. You must take good care of her."

"Yes." The female teacher replied.

The female teacher took Bai Quanyi to the class and introduced herself.

The female teacher is called Okita Asuka. She teaches physical education and is the head teacher of Shiraizumi Masaru's class. Her specialty is karate.

Bai Quanyi only learned some other information later.

Asuka Okita is 31 years old this year. She is cheerful, unyielding and stronger than men, but in fact this kind of personality brought disaster. About a year ago, her husband proposed to break up and divorced her.

She still can't let go. Since the divorce, she has felt lonely and painful. Every day is very lonely. Later, by chance, she entered the Black Copper School and fell in love with the life there.

Shiraizumi Mashi was taken to an empty classroom by Asuka Okita. It was a mess and there was a very unpleasant smell. The only people in the empty classroom were Asuka Okita and Shiraizumi Mashi.

"Okita honestly...why are there only you and me here..."

"Hehehe... The principal specifically instructed me to take good care of you. By the way, I will also be guiding Baiquanyi on the daily learning content of students in this school."

Then, Okita Asuka squatted down in front of Shiraizumi Masaru, her eyes shining, and she couldn't wait...

"Teacher Okita...you..."

"Hehehe... Shiraizumi Masaru, you don't have a girlfriend yet, do you? Let me teach you what to do if you get one."

Shiraizumi was shocked. He understood why such a lousy school was so bad and yet the tuition was so expensive. This school shouldn't even exist in the normal world. It was completely illegal. I had no idea how it had survived in Japan, a country with a sound legal system.

I have to say that Asuka Okita's professional skills are very professional. Shiraizumi Mashi feels that many students who enter this school may never want to graduate.

Then, Asuka Okita turned her back to Shiraizumi Masu, raised her big butt, turned her head and looked at him eagerly.

"Shiraizumi-san, what are you waiting for?"

"Teacher...you should take me to the classroom first. I come to school to study, not to do this kind of thing!"

"Is this what learning 200 is?"

"Teacher, please don't treat me like an idiot. The content of your teaching is clearly beyond the scope of the Japanese college entrance examination."

"you--"

Okita Asuka's eyes widened, unable to believe that Shiraizumi Masaru would say such a thing. She had just seen the new transfer student and was immediately fascinated by him. She couldn't wait to bring him in for individual instruction, but she had no idea that the new transfer student was such a fool.

Okita Asuri stared at Baiquan Yi unwillingly, his face full of resentment, and said unhappily: "Come with me."

Shiraizumi Mashi followed Asuka Okita to his class.

Sure enough, the students in the class were more abnormal than each other, like patients in a mental hospital.

Most of these students were male, with only a few female. The male students were hyperactive and neurotic, while the female students seemed mentally devastated, clearly victims.

Baiquanyi looked around, but Mizushima Kaho was not there.

However, there was a male student who attracted Shiraizumi's attention. He was Mizushima Kaho's boyfriend, who had appeared on the surveillance camera at the gate of Teitan High School.

Although he found Mizushima Kaho's boyfriend, Shiraizumi Masaru didn't act rashly. His goal changed. It wasn't just to find Mizushima Kaho; he also wanted to collect evidence of crimes at the school.

The world of mental illness is so absurd and unruly

The daily teaching life at Kurogane School really opened Baiquanyi's eyes. It was as if he had come to a world full of mental patients.

Both teachers and students seem to have endless energy, and they act crazy every day in the classroom, on the playground, by the swimming pool...

Bai Quanyi felt like he had come to the world of Crusoe. He managed to restrain himself and not get involved, becoming a psychopath.

Bai Quanyi obtained a lot of information through secret investigation.

Mizushima Kaho's so-called boyfriend is called Kurose Ryuya. He is the president of the school student union and the most powerful person in Kuroko School.

Even the principal, Keizo Hirikawa, has to respect him!

In the swimming class, Asuka Okita teaches swimming and the students are all learning very seriously.

They surrounded Asuka Okita and stared at her in a swimsuit with evil eyes...

"Don't be impatient, line up and come one by one. If you all come at once, I won't be able to teach you all!"

"Hey hey hey..."

"Hee hee hee……"

"Chi chi chi..."

The male classmates laughed strangely and rushed forward without listening to Asuka Okita.

Then, Okita Asuka was lost in the crowd...

Bai Quanyi sat by the swimming pool in a daze, watching this scene, but he did not stop it.

It was obvious that Okita Asuka had long been deranged, and his attempts to stop her were futile. If he truly wanted to save Okita Asuka, he had to gather enough evidence of the Black Copper School's illegal activities to eliminate it entirely. Furthermore, he had to find the mastermind behind the incident, otherwise he would only be treating the symptoms and not the root cause.

Just when Shiraizumi Masu was in a daze, Kurose Ryuya came in front of Shiraizumi Masu.

"Classmate Qin, Teacher Okita is working hard to teach swimming! You can't be lazy here..."

"I'm sorry, Kurose-san, I'm not interested in an old lady like Okita-sensei! I heard she's divorced. What's so good about a divorced woman like that?"

"That's it...I'll take you to the student union after school."

"Why〃〃 ?"

"You ask why? Haha...there it is."

……

After school, Kurose Ryuya took Shiraizumi Masu to the student council.

When Bai Quanyi arrived at the student union, there were already many people there.

Many people surrounded a girl, and the girl was the missing female student Mizushima Kaho that Shiraizumi Mashi was looking for.

It turns out that after Mizushima Kaho became Kurose Tatsuya's girlfriend, she has been following Kurose Tatsuya and never went home.