"Right... Understood," said Kirigiri, extending her right hand and taking a bottle out of Inuzuka's bag. She opened it, and then, for some incomprehensible reason, started pouring it out onto her skirt, around her thighs. The strong smell of alcohol permeated the air immediately.
"W-Wait, what are you doing!?"
Her lower body was soaked with alcohol.
Next, she took out the lighter from Amino's briefcase.
"Kirigiri-chan!"
"This vodka is 96% alcohol by volume. I believe simply soaking fabric with it, as I have done, would allow it to very easily catch fire." Kirigiri held the lighter in her right hand, expressionless.
In my eyes, this was nothing short of insanity. "What are you thinking?!"
"I'm starting a fire."
"Stop it! What reason could you possibly have to..."
If she flicked on the lighter, then the vaporized alcohol might ignite. If that happened, her alcohol-soaked clothes would probably instantly go up in flames. That wouldn't just leave her with a few burns. She might just burn to death...
I didn't have the faintest idea why she would do something like that.
"I'm dead serious. Indicting the culprit means putting your life on the line. That's what Grandfather taught me."
"Kirigiri-chan, what are you saying?! Stop it!"
"And I have the resolve to sacrifice my own life in pursuit of the truth," she said, her voice cold enough to send a shiver down my spine. In that moment—her eyes had already lost color, as if she were staring down death itself.
She placed her thumb on the wheel of the lighter.
"Stop!"
"I will start a fire in five seconds."
Five... Four...
I approached her. All I could do now was kick her arm and try to send the lighter flying.
Three...
"Onee-sama, watch quietly." She barred me from coming any closer.
The area surrounding the facility was completely dark, the lights outside were arranged at regular intervals but made little difference to the lighting. On the edge of the courtyard, outside the clock tower - stood a lone girl.
She squinted, looking at the clocktower in front of her.
“Any moment now.” She muttered quietly.
The girl stood there, waiting for someone. Although when she had first contacted them, they replied, “We don’t need to meet” - she then offered an exchange of information and thus they made an appointment. For someone who made a profession out of digging up dirt on people, it was easy for her. For people she does not know about, it’s easier for her to meet them in person - That was her opinion.
The hunger for fame is a scary thing.
Even if it’s seems impossible, people are determined to become great.
And so she waited - for a member of Hope’s Peak Academy’s Steering Committee. She needed to meet them no matter what. She needed to talk to them face-to-face no matter what. She needed to talk to them about the cover up on “that information”-
Most likely, the principle, her employer didn’t know about the information. That’s why it was vital that she questioned him face-to-face.
It had not yet even been a few days since she begun her investigation, but she had a reason to be this quick.
She had an incredible talent - that was why.
That girl’s name was - Kirigiri Kyouko.
She was from Hope’s Peak Academy’s 78th batch, her talent was “Super High School Level Detective”.
Currently that girl was investigating “that incident” within Hope’s Peak Academy.
“He’s late…” She muttered, looking up at the clock tower again.
Five minutes late.
I should have told him to be more punctual.
As she frowned, a line between her eyebrows became more obvious. However as she looked at the clock tower once more, her crease vanished. In the distance she saw a figure. The figure seemed to be on guard as they looked around while slowly walking towards her. Gradually the figure became clearer - It was an old man with a black suit and tie, as if he were in mourning at a funeral. His hair was styled back with pomade and looked like a man made artifact.
As the man approached, his expression became clearer. He had wrinkles on his forehead that seemed to be carved into his very skull, and beneath them, deep set eyes which glared at Kyouko.
Soon they were around 3 metres away from each other.
The man stopped.
“... Was it you who called me here?” His mouth, drawn on his face in a straight line, opened and he spoke to Kyouko with a gritty voice.
“What the hell-” The old man’s words were cut off.
Something fell from the sky and landed in front of Kyouko’s eyes.
The man, and his words were crushed.
It seemed to happen in slow motion.
Or perhaps like seeing the frames of a video, one at a time.
A school desk fell from the sky, and fell onto the man in front of her. As he was hit by the desk, the man’s body seemed to fold over in the impact, while the desk on the other hand bounced off him into the air. As that happened, another desk fell down. This one crushed the man’s waist and he bent backwards like a doll. Another desk fell and bent the man’s neck at an unnatural angle - The man didn’t have enough time to even look surprised. His face was frozen as he called out to Kyoko. The desks fell to the ground in a cloud of dust and the man’s figure was obscured.
Immediately after, a delayed noise sounded out.
An immensely loud sound.
As that happened, a desk flew out of the cloud of dust and missed Kirigiri by mere inches, it spun like a spinning top behind her.
That was the crazy scene that transpired before her.
That was the outcome of the crazy scene.
The moment the man standing in front of Kyouko had opened his mouth, a large desk fell out of the sky and crushed him in a nano second.
It interrupted her thoughts for a moment - but only for a moment. As the dust was still settling she ran to the mountain of desks and started shifting them. A bright red liquid was already spreading around the rubble of desks. A dark liquid flowed from his eyes, ears, nose and too many other places to list.
Kyouko quickly decided to instead look above of her. On the roof of a school building she spotted a silhouette. Her eyes came into focus. Behind the figure, the moon beamed brightly. The figure looked as though it was holding something above it - they threw it.
A folding chair was speeding straight towards Kyouko.
She dodged it and ran towards the school building.
There was a crashing sound behind her.
She ran into building, keeping as low to the ground as she could and ran up the stairs. At that point it no longer mattered whether she made herself a target or not. Now she was simply running for a lead, even in danger she was just as enthusiastic. In little to no time she had arrived on the landing and found the remains of a padlock on door leading to the roof.
This school should pay more attention to crime prevention.
She thought sarcastically as she grasped the doorknob. She could feel the cold bite of the metal on her fingertips. She twisted the doorknob and the door opened quietly. The moment she opened the door, a strong gust of wind passed by Kyouko.
As she took a single step she looked around the rooftop, illuminated by the dark night sky. However, there was nothing there. She stepped onto the concrete floor and looked behind the door, every nook and cranny she could find, she searched everywhere.
But she really couldn’t find anything.
I’m too late.
Overcome by a sense of frustration, she leaned against the roof fence. Looking up she whispered to the night sky.
“This is why… I hate my job…”
Chills went down her spine.
She had a bad feeling.
She turned around and looked at the courtyard through the iron fence.
A cold blast of wind hit her face and for a moment everything went cloudy. Around the clock tower she could see the remains of the desks and folding chair.
Of course they were there.
However the dead body - was gone.
Kyouko gritted her teeth as she took her phone from her uniform pocket. Her finger descended towards the call button but she hesitated momentarily.
Even so, she pressed it.
She listened to the voice of a man through the phone.
“Should we meet soon?” Kyouko said, not bothering to introduce herself, “I have something I need to report. I’ll be heading over there soon.”
0 - All: All 1 - Religious Crime: Brainwashing, illegal doctrine, etc. 2 - Political Crime: Terrorism, domestic conflict, subversive activities, etc. 3 - White-Collar Crime: Counterfeiting, embezzlement, breach of trust, etc. 4 - Wildlife Crime: Environmental terrorism, poaching, illegal dumping, etc. 5 - Cybercrime: Unauthorized access, Internet fraud, etc. 6 - Public-Order Crime: Prostitution, gambling, etc. 7 - Art Crime: Art theft, art forgery, etc. 8 - Human Rights Abuses: Coercion, false imprisonment, kidnapping (restriction of personal freedom), etc. 9 - Homicide: Felony murder, locked room murder, etc.
The van went up a snowy mountain road with no buildings in sight, let alone any people.
"Hey, you. Can we talk for a sec?" I asked in a low voice to the girl sitting next to me. "Do you know why we're in this car?"
She just barely tilted her head as she turned towards me.
"Are you a detective?"
She nodded.
"Really? I sure haven't heard anything about any middle school detectives going to my school..."
"I only recently transferred to my current school," she said, opening her mouth for the first time. She looked up at me with wide eyes that stared right through me. Though her skin was pale, the cold had made her cheeks slightly red, as if she were wearing blush. It was cute.
"Oh, okay, a transfer student... But wait, a middle school detective from the same school as me getting the same request as me... That's a weird coincidence."
"A strange coincidence indeed," the drunk old man said, turning around to face us as soon as the car started driving.
"Hey Uncle Badtouch, quit making passes on little girls when you're drunk. And don't give me any 'jokes' about cops owing favors to detectives. You don't even deserve to be a detective," the man in the suit interrupted forcefully. "Sheesh. Honestly. Drunkenly creeping on kids... I can't believe we're in a white van right now. Is this some kind of knockoff candid camera show?"
"Look who's talking, greenhorn." The drunk old man's expression suddenly became serious. "I've been a full-time detective for twenty-five years. I'm not just some loudmouth drunkard."
"Oh, well, maybe you should look at this. This might sober you up." The man in the suit pulled out some kind of photo ID card from an inner jacket pocket, and showed it off with a smirk.
Eigo Amino: DSC #367
"My name's Eigo Amino. My Detective Shelf Collection number is 367—so what's yours, old man? Don't tell me you're not even registered."
"Hmph," the drunk old man snorted, before starting to rummage around for something, sticking his hand in different pockets. Finally he found the card he was looking for, and showed it to Amino.
Kou Inuzuka: DSC #943
"N-Number 943...? You... No, you couldn't be... Number 9, Class 3? R-Really?"
"This ain't no fake ID," the man called Inuzuka said, taking a swig from his bottle.
"I-I'm so sorry! I had no idea that you were so high-class... Please find it in your heart to forgive my many transgressions!" Amino suddenly bowed his head.
It kinda felt like I was getting a glimpse of the sordid adult world here. Still, I never would have guessed that that drunk old man would be Class 3, either. They say you shouldn't judge a book by its cover...
"What's Class 3?" the girl next to me asked.
"You don't know?"
"No," she said, narrowing her eyes. "Is it that remarkable?"
"As far as us detectives go." I took out my own Detective Library membership card from my wallet to show her.
Yui Samidare: DSC #888
"You don't have a card like this?"
"I only recently registered." She took a notebook out of her bag, and slipped a card out from between the pages.
Kyouko Kirigiri: DSC #919
"Whoa, you're Number 9 too. Number 9 in middle school... You've really got your work cut out for you there," I said in surprise.
All of the detectives registered with the Detective Library have a numbered card. The Detective Library—it's lined with shelves categorizing informational files on roughly 65,500 detectives. Information on the registered detectives is made available to the public, so anyone can come browse the files freely. If you're in trouble, you should definitely head on down to the Detective Library. You'll find out which detectives can help you with your problem, and view records of their past cases.
For detectives, the primary benefit of registering with the Detective Library is getting more requests sent your way. It's like a specialized dispatch registry. Though it's not their job to play the middleman or make any introductions, since the idea is that "The Detective Library is a database without bias." Detectives may lose their anonymity due to their data being freely accessible, but no information on a case is published until it's resolved, so I don't think it's that big of a deal. They only publish the most relevant information for past records and personal info too.
The Detective Library made its own classification system for their data, in order to sort the files onto the different shelves. They call this the Detective Shelf Collection, but what it really means is that all of the detectives get classification numbers. DSC classifications are three-digit numbers.
The first number is the most general sorting, designating a detective's field of specialization. Using Amino's 367 as an example, this would be the 3. It refers to white-collar crime—his specialty is cases that involve embezzlement, breach of trust, and so on. Number 9's like Inuzuka and Kirigiri specialize in murder cases, so you could say they're the superstars of the detective world. But there are also a lot of them who fail without ever fulfilling their requests. I hear that a lot of them die while working their cases, too.
Next, the number in the middle is the second level of sorting. It indicates even more specific specialties under the umbrella category of the first number. In Amino's case, I guess the 6 means he specializes in corporate espionage. Just looking at him, I wouldn't be surprised if he worked as a corporate spy himself.
And then—
"The last number indicates the detective's rank. Everyone starts at Rank 9. You just registered, so that's why you're a 9, too. The number starts going up little by little as a detective gets more recognition for their work. You can't just make it to Rank 3 overnight, so that old man must be an amazing detective, even if you couldn't tell just by looking at him. The highest rank is Rank 0, by the way. The zero is proof that you've mastered your craft."
Detectives with a zero in their classification have earned the respect of their peers. They're called things like Zeroes, or Zero Class. If Rank 0 detectives keep working their way up, they can get a 0 for their middle number too, which indicates proficiency in all specializations. They're called Double-Zero Class detectives, and their number tells you right from the get-go that they're at the very top of their field. It's the so-called Great Detective class. If they go even further, they can get a 0 for their first number that shows proficiency in all of those categories, and join the ranks of the legendary Triple-Zero Class. I've heard that in the fifteen or so years of Detective Library history, only four detectives have ever earned the number 000.
"So, would you say that becoming Zero Class is the same as receiving recognition as a detective?" Kyouko Kirigiri asked. Her eyes were full of innocence—like a child who'd found a map to some buried treasure.
"Well, I guess... But I'll tell you right now, it's not gonna be easy. Actually, I was around your age when I first became a detective, but this is as far as I've gotten in three whole years."
"Lemme see that." Amino forcefully snatched my card out of my hands. "What?! ...Y-You're Rank 8 in high school... W-Well, I'm still out of your league. Too bad, Detective Schoolgirl!" He seemed kinda jittery.
"What about you, Shady Boy? You've got a card, right?" Inuzuka asked the man in the sunglasses.
He silently took it out of his pocket to show us.
Shiita Enbi: DSC #245
"Wh-What...? Rank 5... You're higher-ranked than I am..." Amino was trembling. It's true that rank numbers are a good general indicator of a detective's ability, but I'm not sure it's worth waving it around the way he did.
"So we all have cards?" Enbi asked, idly.
"Nothin' strange about someone goin' to the Detective Library and findin' detectives there to send their request to," slurred Inuzuka. "But if I were the one makin' a request, I'd head straight for the Zero Class section..."
"That's certainly true. But perhaps they just thought they'd try inviting detectives from all different kinds of classes to see how it went," said Amino. He was evidently acting completely deferential to Inuzuka now. Maybe he was just really adaptable from going up against corporate spies all the time.
"Hmph... Guess that's true. Everyone's got different specialties too. Our esteemed host appears to be rather eccentric."
"Huh? You know who made the request?"
"Yeah, when you get on my level, you can figure out who's making a request right away, even if they're anonymous."
MEMORIES: PRE DR1
MEMORY #18
"Right... Understood," said Kirigiri, extending her right hand and taking a bottle out of Inuzuka's bag. She opened it, and then, for some incomprehensible reason, started pouring it out onto her skirt, around her thighs. The strong smell of alcohol permeated the air immediately.
"W-Wait, what are you doing!?"
Her lower body was soaked with alcohol.
Next, she took out the lighter from Amino's briefcase.
"Kirigiri-chan!"
"This vodka is 96% alcohol by volume. I believe simply soaking fabric with it, as I have done, would allow it to very easily catch fire." Kirigiri held the lighter in her right hand, expressionless.
In my eyes, this was nothing short of insanity. "What are you thinking?!"
"I'm starting a fire."
"Stop it! What reason could you possibly have to..."
If she flicked on the lighter, then the vaporized alcohol might ignite. If that happened, her alcohol-soaked clothes would probably instantly go up in flames. That wouldn't just leave her with a few burns. She might just burn to death...
I didn't have the faintest idea why she would do something like that.
"I'm dead serious. Indicting the culprit means putting your life on the line. That's what Grandfather taught me."
"Kirigiri-chan, what are you saying?! Stop it!"
"And I have the resolve to sacrifice my own life in pursuit of the truth," she said, her voice cold enough to send a shiver down my spine. In that moment—her eyes had already lost color, as if she were staring down death itself.
She placed her thumb on the wheel of the lighter.
"Stop!"
"I will start a fire in five seconds."
Five... Four...
I approached her. All I could do now was kick her arm and try to send the lighter flying.
Three...
"Onee-sama, watch quietly." She barred me from coming any closer.
Two...
I stopped without even thinking.
One...
"I give up."
MEMORY #21
Hope’s Peak Academy East District.
The courtyard -
The area surrounding the facility was completely dark, the lights outside were arranged at regular intervals but made little difference to the lighting. On the edge of the courtyard, outside the clock tower - stood a lone girl.
She squinted, looking at the clocktower in front of her.
“Any moment now.” She muttered quietly.
The girl stood there, waiting for someone. Although when she had first contacted them, they replied, “We don’t need to meet” - she then offered an exchange of information and thus they made an appointment. For someone who made a profession out of digging up dirt on people, it was easy for her. For people she does not know about, it’s easier for her to meet them in person - That was her opinion.
The hunger for fame is a scary thing.
Even if it’s seems impossible, people are determined to become great.
And so she waited - for a member of Hope’s Peak Academy’s Steering Committee. She needed to meet them no matter what. She needed to talk to them face-to-face no matter what. She needed to talk to them about the cover up on “that information”-
Most likely, the principle, her employer didn’t know about the information. That’s why it was vital that she questioned him face-to-face.
It had not yet even been a few days since she begun her investigation, but she had a reason to be this quick.
She had an incredible talent - that was why.
That girl’s name was - Kirigiri Kyouko.
She was from Hope’s Peak Academy’s 78th batch, her talent was “Super High School Level Detective”.
Currently that girl was investigating “that incident” within Hope’s Peak Academy.
“He’s late…” She muttered, looking up at the clock tower again.
Five minutes late.
I should have told him to be more punctual.
As she frowned, a line between her eyebrows became more obvious. However as she looked at the clock tower once more, her crease vanished. In the distance she saw a figure. The figure seemed to be on guard as they looked around while slowly walking towards her. Gradually the figure became clearer - It was an old man with a black suit and tie, as if he were in mourning at a funeral. His hair was styled back with pomade and looked like a man made artifact.
As the man approached, his expression became clearer. He had wrinkles on his forehead that seemed to be carved into his very skull, and beneath them, deep set eyes which glared at Kyouko.
Soon they were around 3 metres away from each other.
The man stopped.
“... Was it you who called me here?” His mouth, drawn on his face in a straight line, opened and he spoke to Kyouko with a gritty voice.
“What the hell-” The old man’s words were cut off.
Something fell from the sky and landed in front of Kyouko’s eyes.
The man, and his words were crushed.
It seemed to happen in slow motion.
Or perhaps like seeing the frames of a video, one at a time.
A school desk fell from the sky, and fell onto the man in front of her. As he was hit by the desk, the man’s body seemed to fold over in the impact, while the desk on the other hand bounced off him into the air. As that happened, another desk fell down. This one crushed the man’s waist and he bent backwards like a doll. Another desk fell and bent the man’s neck at an unnatural angle - The man didn’t have enough time to even look surprised. His face was frozen as he called out to Kyoko. The desks fell to the ground in a cloud of dust and the man’s figure was obscured.
Immediately after, a delayed noise sounded out.
An immensely loud sound.
As that happened, a desk flew out of the cloud of dust and missed Kirigiri by mere inches, it spun like a spinning top behind her.
That was the crazy scene that transpired before her.
That was the outcome of the crazy scene.
The moment the man standing in front of Kyouko had opened his mouth, a large desk fell out of the sky and crushed him in a nano second.
It interrupted her thoughts for a moment - but only for a moment. As the dust was still settling she ran to the mountain of desks and started shifting them. A bright red liquid was already spreading around the rubble of desks. A dark liquid flowed from his eyes, ears, nose and too many other places to list.
Kyouko quickly decided to instead look above of her. On the roof of a school building she spotted a silhouette. Her eyes came into focus. Behind the figure, the moon beamed brightly. The figure looked as though it was holding something above it - they threw it.
A folding chair was speeding straight towards Kyouko.
She dodged it and ran towards the school building.
There was a crashing sound behind her.
She ran into building, keeping as low to the ground as she could and ran up the stairs. At that point it no longer mattered whether she made herself a target or not. Now she was simply running for a lead, even in danger she was just as enthusiastic. In little to no time she had arrived on the landing and found the remains of a padlock on door leading to the roof.
This school should pay more attention to crime prevention.
She thought sarcastically as she grasped the doorknob. She could feel the cold bite of the metal on her fingertips. She twisted the doorknob and the door opened quietly. The moment she opened the door, a strong gust of wind passed by Kyouko.
As she took a single step she looked around the rooftop, illuminated by the dark night sky. However, there was nothing there. She stepped onto the concrete floor and looked behind the door, every nook and cranny she could find, she searched everywhere.
But she really couldn’t find anything.
I’m too late.
Overcome by a sense of frustration, she leaned against the roof fence. Looking up she whispered to the night sky.
“This is why… I hate my job…”
Chills went down her spine.
She had a bad feeling.
She turned around and looked at the courtyard through the iron fence.
A cold blast of wind hit her face and for a moment everything went cloudy. Around the clock tower she could see the remains of the desks and folding chair.
Of course they were there.
However the dead body - was gone.
Kyouko gritted her teeth as she took her phone from her uniform pocket. Her finger descended towards the call button but she hesitated momentarily.
Even so, she pressed it.
She listened to the voice of a man through the phone.
“Should we meet soon?” Kyouko said, not bothering to introduce herself, “I have something I need to report. I’ll be heading over there soon.”
MEMORY #24
MEMORY #40
Detective Shelf Collection (DSC): Detective Library Classification
0 - All: All
1 - Religious Crime: Brainwashing, illegal doctrine, etc.
2 - Political Crime: Terrorism, domestic conflict, subversive activities, etc.
3 - White-Collar Crime: Counterfeiting, embezzlement, breach of trust, etc.
4 - Wildlife Crime: Environmental terrorism, poaching, illegal dumping, etc.
5 - Cybercrime: Unauthorized access, Internet fraud, etc.
6 - Public-Order Crime: Prostitution, gambling, etc.
7 - Art Crime: Art theft, art forgery, etc.
8 - Human Rights Abuses: Coercion, false imprisonment, kidnapping (restriction of personal freedom), etc.
9 - Homicide: Felony murder, locked room murder, etc.
---
Kyouko Kirigiri: DSC 919 — Homicide, Impossible Crime, Rank 9
MEMORY #41
MEMORY #43
The van went up a snowy mountain road with no buildings in sight, let alone any people.
"Hey, you. Can we talk for a sec?" I asked in a low voice to the girl sitting next to me. "Do you know why we're in this car?"
She just barely tilted her head as she turned towards me.
"Are you a detective?"
She nodded.
"Really? I sure haven't heard anything about any middle school detectives going to my school..."
"I only recently transferred to my current school," she said, opening her mouth for the first time. She looked up at me with wide eyes that stared right through me. Though her skin was pale, the cold had made her cheeks slightly red, as if she were wearing blush. It was cute.
"Oh, okay, a transfer student... But wait, a middle school detective from the same school as me getting the same request as me... That's a weird coincidence."
"A strange coincidence indeed," the drunk old man said, turning around to face us as soon as the car started driving.
"Hey Uncle Badtouch, quit making passes on little girls when you're drunk. And don't give me any 'jokes' about cops owing favors to detectives. You don't even deserve to be a detective," the man in the suit interrupted forcefully. "Sheesh. Honestly. Drunkenly creeping on kids... I can't believe we're in a white van right now. Is this some kind of knockoff candid camera show?"
"Look who's talking, greenhorn." The drunk old man's expression suddenly became serious. "I've been a full-time detective for twenty-five years. I'm not just some loudmouth drunkard."
"Oh, well, maybe you should look at this. This might sober you up." The man in the suit pulled out some kind of photo ID card from an inner jacket pocket, and showed it off with a smirk.
Eigo Amino: DSC #367
"My name's Eigo Amino. My Detective Shelf Collection number is 367—so what's yours, old man? Don't tell me you're not even registered."
"Hmph," the drunk old man snorted, before starting to rummage around for something, sticking his hand in different pockets. Finally he found the card he was looking for, and showed it to Amino.
Kou Inuzuka: DSC #943
"N-Number 943...? You... No, you couldn't be... Number 9, Class 3? R-Really?"
"This ain't no fake ID," the man called Inuzuka said, taking a swig from his bottle.
"I-I'm so sorry! I had no idea that you were so high-class... Please find it in your heart to forgive my many transgressions!" Amino suddenly bowed his head.
It kinda felt like I was getting a glimpse of the sordid adult world here. Still, I never would have guessed that that drunk old man would be Class 3, either. They say you shouldn't judge a book by its cover...
"What's Class 3?" the girl next to me asked.
"You don't know?"
"No," she said, narrowing her eyes. "Is it that remarkable?"
"As far as us detectives go." I took out my own Detective Library membership card from my wallet to show her.
Yui Samidare: DSC #888
"You don't have a card like this?"
"I only recently registered." She took a notebook out of her bag, and slipped a card out from between the pages.
Kyouko Kirigiri: DSC #919
"Whoa, you're Number 9 too. Number 9 in middle school... You've really got your work cut out for you there," I said in surprise.
All of the detectives registered with the Detective Library have a numbered card. The Detective Library—it's lined with shelves categorizing informational files on roughly 65,500 detectives. Information on the registered detectives is made available to the public, so anyone can come browse the files freely. If you're in trouble, you should definitely head on down to the Detective Library. You'll find out which detectives can help you with your problem, and view records of their past cases.
For detectives, the primary benefit of registering with the Detective Library is getting more requests sent your way. It's like a specialized dispatch registry. Though it's not their job to play the middleman or make any introductions, since the idea is that "The Detective Library is a database without bias." Detectives may lose their anonymity due to their data being freely accessible, but no information on a case is published until it's resolved, so I don't think it's that big of a deal. They only publish the most relevant information for past records and personal info too.
The Detective Library made its own classification system for their data, in order to sort the files onto the different shelves. They call this the Detective Shelf Collection, but what it really means is that all of the detectives get classification numbers. DSC classifications are three-digit numbers.
The first number is the most general sorting, designating a detective's field of specialization. Using Amino's 367 as an example, this would be the 3. It refers to white-collar crime—his specialty is cases that involve embezzlement, breach of trust, and so on. Number 9's like Inuzuka and Kirigiri specialize in murder cases, so you could say they're the superstars of the detective world. But there are also a lot of them who fail without ever fulfilling their requests. I hear that a lot of them die while working their cases, too.
Next, the number in the middle is the second level of sorting. It indicates even more specific specialties under the umbrella category of the first number. In Amino's case, I guess the 6 means he specializes in corporate espionage. Just looking at him, I wouldn't be surprised if he worked as a corporate spy himself.
And then—
"The last number indicates the detective's rank. Everyone starts at Rank 9. You just registered, so that's why you're a 9, too. The number starts going up little by little as a detective gets more recognition for their work. You can't just make it to Rank 3 overnight, so that old man must be an amazing detective, even if you couldn't tell just by looking at him. The highest rank is Rank 0, by the way. The zero is proof that you've mastered your craft."
Detectives with a zero in their classification have earned the respect of their peers. They're called things like Zeroes, or Zero Class. If Rank 0 detectives keep working their way up, they can get a 0 for their middle number too, which indicates proficiency in all specializations. They're called Double-Zero Class detectives, and their number tells you right from the get-go that they're at the very top of their field. It's the so-called Great Detective class. If they go even further, they can get a 0 for their first number that shows proficiency in all of those categories, and join the ranks of the legendary Triple-Zero Class. I've heard that in the fifteen or so years of Detective Library history, only four detectives have ever earned the number 000.
"So, would you say that becoming Zero Class is the same as receiving recognition as a detective?" Kyouko Kirigiri asked. Her eyes were full of innocence—like a child who'd found a map to some buried treasure.
"Well, I guess... But I'll tell you right now, it's not gonna be easy. Actually, I was around your age when I first became a detective, but this is as far as I've gotten in three whole years."
"Lemme see that." Amino forcefully snatched my card out of my hands. "What?! ...Y-You're Rank 8 in high school... W-Well, I'm still out of your league. Too bad, Detective Schoolgirl!" He seemed kinda jittery.
"What about you, Shady Boy? You've got a card, right?" Inuzuka asked the man in the sunglasses.
He silently took it out of his pocket to show us.
Shiita Enbi: DSC #245
"Wh-What...? Rank 5... You're higher-ranked than I am..." Amino was trembling. It's true that rank numbers are a good general indicator of a detective's ability, but I'm not sure it's worth waving it around the way he did.
"So we all have cards?" Enbi asked, idly.
"Nothin' strange about someone goin' to the Detective Library and findin' detectives there to send their request to," slurred Inuzuka. "But if I were the one makin' a request, I'd head straight for the Zero Class section..."
"That's certainly true. But perhaps they just thought they'd try inviting detectives from all different kinds of classes to see how it went," said Amino. He was evidently acting completely deferential to Inuzuka now. Maybe he was just really adaptable from going up against corporate spies all the time.
"Hmph... Guess that's true. Everyone's got different specialties too. Our esteemed host appears to be rather eccentric."
"Huh? You know who made the request?"
"Yeah, when you get on my level, you can figure out who's making a request right away, even if they're anonymous."
"Who exactly are they?"