Coroner: A Detective Conan Fanfiction

A long time later, in a high-end apartment complex in Beika Town.

Lin Xinyi followed the address listed on "his" driver's license and arrived at the building.

If everything went smoothly, this would be his new home.

"Looks like 'my' financial situation is even better than I imagined."

Standing in the apartment corridor, he glanced out the window at the towering Tokyo Tower in the distance. He could already guess how astronomical the property prices here must be.

He quickly located the unit number matching the address on his ID and walked up to the door.

Slowly, he inserted the key and cautiously turned it.

Click.

With a crisp sound, the door unlocked.

"Good, the address matches the documents."

Lin Xinyi let out a slight breath of relief.

Pushing the door open, he carefully glanced around the entryway.

"Only one pair of men's slippers on the floor…"

"The shoe rack holds a few more pairs, all men's, and covered in dust. Probably spares."

"It looks like 'I' live alone, and no one else has visited recently."

He had been worried that "his" home might include parents, a girlfriend, or some other family members.

If that were the case, he had no idea how he would deal with them.

But seeing no sign of another occupant, he finally relaxed a little.

Stepping inside, he took in the spacious interior. The décor was high-end, clearly expensive.

Aside from the mess and grime—likely due to the previous owner's sloppiness—this was an undeniably luxurious apartment.

"Now then, time to gather some intel on 'myself.'"

Like investigating a crime scene, Lin Xinyi started combing through the place, searching for any clues that might help him understand his new identity.

The first thing he found was a suicide note.

It sat plainly on the bedside table, its contents shockingly simple:

"I have fallen into the abyss."

"Only death can bring me release."

No explanations. No context. Nothing to indicate why the original owner had chosen to end his life.

Still, Lin Xinyi tried to glean something useful from those two short lines.

"Not a single mention of family or friends. No last words for anyone."

"Does that mean he knew his loved ones would never see this note?"

"It seems like he had no close family or friends. His social circle must have been very small."

A tragic reality for the original owner.

But for Lin Xinyi, this was good news.

For someone lacking the original owner's memories, the fewer social connections, the better.

"But… 'I have fallen into the abyss'?"

"What exactly did he get himself into?"

"Doesn't seem like a love-related issue. Could it be a work problem?"

"Or… was he involved in something illegal?"

A sense of unease crept over Lin Xinyi. He quickened his search.

Then, as he absentmindedly pulled open the nightstand drawer beneath the suicide note, his heart suddenly sank.

Inside lay a Beretta M92F.

Lin Xinyi stared at the black handgun in stunned silence.

Beside it was a box of golden bullets, gleaming under the sunlight.

"If I remember correctly, Japan has strict gun control laws, right?"

"And yet, this guy had a pistol and live ammunition in his home?"

"Could he actually be… a criminal?"

A chill ran down his spine.

But just as panic set in, his gaze landed on something beside the gun—causing him to breathe a massive sigh of relief.

It was a government-issued firearm permit.

Proof that the original owner legally possessed the weapon.

"Thank god. At least the gun is legal."

"Let's just hope he was merely a firearms enthusiast."

Suppressing his doubts for now, Lin Xinyi resumed searching through the messy drawer.

Soon, he found something even more critical:

A work ID badge.

It featured a photo of himself, along with highly important job details:

Name: Lin Xinyi

Position: Chief Security Officer

Company: Hachisu Pharmaceuticals, Inc.

So, the original owner worked for a biopharmaceutical company.

The badge also listed the company's specific address.

"Chief Security Officer? What kind of role is that?"

"Do pharmaceutical companies even have positions like this?"

Lin Xinyi had joined the police force right after graduation and had never worked in the corporate world.

To an outsider like him, a CSO sounded like some high-ranking safety supervisor.

And considering the title included the word 'Chief,' it probably meant the original owner held a leadership position.

Which meant he was likely well-connected—because in Japan, a society that values seniority, a 24-year-old in a leadership role was highly unusual.

If Lin Xinyi could successfully inherit this job, it would save him a lot of effort.

"But… biopharmaceuticals?"

"That has nothing to do with my expertise."

Lin Xinyi felt a headache coming on.

Sure, both forensic science and pharmaceuticals had the word "medicine" in them, but they were completely different fields.

He had zero background in biology or pharmacology—there was no way he could fake his way through this job.

And being Chief Security Officer definitely sounded like a technical role. Without proper knowledge, pretending to be competent would be difficult.

"Forget it. I should just quit."

"No way I can earn this paycheck."

"Besides, I probably don't even need a salary."

Lin Xinyi casually tossed the work ID aside, already calculating his next move.

The original owner had lived in a high-end apartment, so his savings were probably substantial.

All he had to do was sell the property, withdraw the cash, and catch a flight back home.

After all, this was twenty years ago—a golden era where investment alone could make people rich.

"Working a job? No chance."

"I'll just play the real estate and stock market instead."

Lost in dreams of rebirth and wealth, he kept rummaging through the apartment.

Then, he found something crucial.

A bankbook from Shiryo Bank.

He flipped it open.

Balance: +892,300.00 yen

"Whoa—he actually had an after-tax monthly salary of 890,000 yen?!"

Seeing that six-digit figure printed in fresh ink gave him an intoxicating sense of happiness.

But that joy didn't last.

Because immediately after that +892,300.00, he noticed a long series of massive deductions.

Each expense was enough to make Lin Xinyi, someone used to a modest lifestyle, break into a cold sweat.

The original owner had lived extravagantly, spending recklessly as if every day were his last.

Lin Xinyi frowned, flipping through the bankbook page by page.

Then, on the last entry, something truly terrifying appeared.

The room seemed to turn colder. The sunlight outside felt dimmer.

"Balance: 8,899.00 yen."

"..."

"WHAT THE HELL?!"

For the first time, Lin Xinyi had the urge to curse.

He had the lifestyle of a high roller, the income of a top executive, but in reality…

His bank balance was barely enough to cover a single meal at a nice restaurant.

Which meant—

Forget quitting his job.

He needed to figure out how to pay next month's rent first.

And the worst part?

Earlier, while searching his wallet, Lin Xinyi had found a Shiryo Bank credit card.

Given the original owner's spending habits, combined with a card that allowed large-scale borrowing…

His actual financial situation was probably even worse than what the bankbook showed.

"Shit."

"Don't tell me I have to pay off his credit card debt too?!"

A long silence followed.

Then, with a stiff expression, Lin Xinyi picked up the work ID he had just discarded.

"Looks like… I have no choice but to work."