Chapter 1: Miss Miyabi

Cold wind swept through the alleyway, carrying the distant echo of sirens across the sleeping city.

Blue and red lights painted the walls in restless flashes.

Police tape stretched across the narrow street while officers moved around the crime scene with practiced urgency. Several detectives examined the corpse lying in the middle of the road, the body covered in deep lacerations that soaked the pavement black beneath the dim streetlamps.

A police officer stepped under the tape while flipping open a worn notebook.

"Another hero dead…" he muttered with a tired sigh before jotting down notes.

Not far away, another officer crouched beside the corpse, carefully inspecting the wounds.

"…Single-edged blade," he said quietly. "Precise cuts. Fast execution."

The surrounding officers fell silent.

Nobody needed to say the name aloud.

They already knew.

After all, there was only one man in the country infamous enough to carve apart pro heroes like livestock.

The Hero Killer.

Stain.

One of the younger officers swallowed nervously before speaking.

"Should we call in the hero agencies?"

"No point," another replied. "By the time they arrive, he'll already be gone."

The officer beside the corpse stood up slowly, pulling off his gloves.

"Inform the chief," he ordered.

"Understood, sir."

The younger policeman immediately moved away from the scene while pulling out his phone.

At the opposite side of the city, inside a heavily cluttered office illuminated only by a desk lamp, a large anthropomorphic dog sat behind a mountain of paperwork.

Kenji Tsuragamae rubbed his forehead while scanning through reports stacked across his desk.

Three robberies.

Two missing person cases.

One underground incident.

And now another murdered hero.

The ringing phone shattered the fragile silence.

Kenji immediately picked it up.

"This is Tsuragamae speaking."

The voice on the other side quickly delivered the report.

As the details continued, Kenji's expression darkened further with every passing second.

Another victim.

Another public execution.

Another reminder that the police had completely lost control over the situation.

Eventually, the call ended.

Kenji slowly lowered the receiver back onto the table before leaning into his chair.

His eyes drifted toward the city skyline outside the office window.

The Hero Killer's actions had already begun spreading fear through the public. Hero agencies were under pressure. Civilians questioned whether heroes were truly capable of protecting anyone anymore.

Worst of all…

Stain never targeted civilians.

That single fact made the situation even more complicated.

To some people, he wasn't a criminal.

He was becoming a symbol.

Kenji clicked his tongue in irritation.

"A lunatic with ideals is still a lunatic."

No matter how corrupt or incompetent certain heroes were, they still maintained public order. Allowing someone like Stain to continue freely murdering heroes would eventually plunge the entire system into chaos.

Kenji stared at the phone for several long seconds.

There was visible hesitation in his eyes.

Then, reluctantly, he picked it up again.

He dialed a secure line.

The call connected almost instantly.

"Connect me to the Special Operations Division chief."

For a moment, only silence answered him.

Kenji frowned slightly, wondering if the line had malfunctioned.

Then—

"…How do I use this thing again?"

A calm female voice echoed from the other side.

Kenji paused.

Another voice quickly followed after.

"Chief Miyabi, press the button on the left."

"Oh."

A brief rustling sound came through the speaker.

"Like this?"

"…No, that disconnected the monitor."

"…Ah."

Kenji's eyebrow twitched.

Several seconds later, the line stabilized.

"Oh, it connected."

The female voice returned, completely unfazed.

Kenji exhaled slowly before speaking.

"Greetings, Chief Miyabi. I have a situation that requires Special Operations involvement."

"Who is this?"

A short silence filled the line.

Then a quieter male voice whispered from the side.

"Chief Miyabi, that's the police commissioner."

"Oh."

Miyabi sounded genuinely surprised.

Kenji closed his eyes for a moment.

Anyone else speaking to him like this would have already received disciplinary action.

Unfortunately, the woman on the other side of the line was not "anyone else."

The Special Operations Division existed outside normal law enforcement authority for a reason.

And its chief was even more abnormal than the division itself.

"There's a case I need your unit to handle," Kenji said.

"A dangerous one?"

"Yes."

"What kind?"

Kenji glanced toward the bloodstained crime scene photos scattered across his desk.

"A serial killer targeting heroes."

The other side fell quiet.

Not awkward silence.

Measured silence.

The kind that came from someone processing information rather than reacting emotionally.

Then Miyabi finally spoke.

"…Do you want him captured or eliminated?"

Kenji's fingers tapped lightly against the desk.

"If possible, captured alive."

"If not possible?"

Kenji looked toward the city lights outside his office window.

"…Use your judgment."

"Understood."

Her answer came immediately.

Kenji rubbed his temple again before continuing.

"I'll forward the case files and witness reports to your department."

"Okay."

Another pause.

Then Miyabi spoke again.

"…One more thing."

"What is it?"

"Can I expense food during the operation?"

Kenji stared blankly at the phone.

From the background, he could hear someone frantically whispering.

"Chief Miyabi, this is a serious call—"

"But investigations take time."

"That's not the issue—"

"I get hungry."

Kenji slowly lowered his head into his hand.

He genuinely wondered if the city was doomed.

---------divide-------

The call ended with a soft click.

Inside the Special Operations Division headquarters, silence briefly filled the office.

Miyabi lowered the phone before turning her gaze toward the man standing nearby.

The subordinate immediately straightened his posture.

"Chief?"

"Can you check whether the operational expense request was approved?" Miyabi asked casually.

The man blinked.

Then, almost visibly, relief washed across his face.

For a moment, he genuinely thought he had interrupted something important and was about to lose his job.

"R-Right away, Chief."

He quickly hurried toward the computer terminal and sat down, fingers rapidly moving across the keyboard.

Meanwhile, Miyabi quietly walked back toward her chair.

Her movements were calm and unhurried.

She sat down gracefully before resting her chin against one hand, silently staring at her subordinate's back while waiting.

The atmosphere inside the office became strangely heavy.

The poor man felt cold sweat forming behind his neck.

It wasn't hostility.

That somehow made it worse.

Chief Miyabi simply watched people too intensely.

After nearly a full minute under that silent pressure, the man practically slammed the enter key.

"Done!"

Miyabi tilted her head slightly.

"Done?"

"I-I mean the request was approved," he corrected himself immediately. "And the police files already arrived as well."

Miyabi gave a small nod.

"Good work, Ryu."

"Haha… thank you, Chief."

Ryu laughed awkwardly while wiping nonexistent sweat from his forehead.

Then Miyabi stood up.

"Use the expense account to buy me a melon."

"…Eh?"

Before Ryu could respond, Miyabi had already turned around and walked out of the office.

The automatic doors slid shut behind her.

Silence.

A few seconds later—

Ryu slowly lowered his head onto the desk with a loud thunk.

"Chief… I'm not your errand boy…"

Unfortunately for him, Miyabi was already gone.

And even if she had still been there…

He would never dare say that to her face.

Ryu valued his life.

After all, rumors about Chief Miyabi were terrifying.

Some claimed she once split an entire building in half during an operation.

Others said she eliminated a high-level villain organization alone before backup even arrived.

Ryu didn't know how much of it was true.

But considering how every senior operative treated Miyabi with near absolute respect…

The rumors probably weren't exaggerated.

He let out a long sigh before slowly standing up.

"…Guess I'm buying melon."

Outside the office, Miyabi walked through the dim corridor while reading the newly received case file.

Hero Killer.

Multiple victims.

Sword user.

Extremely dangerous.

As she silently scanned the reports, a translucent screen floated beside her vision where nobody else could see it.

A system interface.

Well…

That was because Miyabi originally did not belong to this world.

After all there was no Hoshimi Miyabi in My Hero Academia.

Five years ago, he had transmigrated into this world.

And yes.

Originally, he was a man.

Even now, that fact still occasionally felt surreal to him.

Especially whenever he accidentally caught his own reflection.

Black long hair.

Sharp crimson eyes.

Fox-like ears.

An absurdly beautiful face.

At first, adapting to the body had been pure suffering.

The fact that he needed to get used to using the restroom alone nearly drove him insane during the first few months.

And then there were the instincts.

The cravings.

The strange attachment to melons.

He still refused to understand why Miyabi loved melons so much.

Yet somehow…

Now he genuinely liked them too.

Miyabi humming quietly while continuing down the hallway.

The source of everything was the mysterious system attached to him after transmigration.

It allowed him to travel between worlds while becoming characters from Mihoyo universes.

Not summon them.

Become them.

Their appearance.

Their abilities.

Their talents.

Even fragments of personality occasionally bled into him over time.

Sometimes she would unconsciously react exactly the way Miyabi would.

Sometimes she caught herself speaking with her mannerisms.

And recently…

He had started craving expensive melons.

Still, despite the side effects, the system was undeniably absurdly powerful.

A true golden finger.

Who wouldn't want abilities beyond human understanding?

Especially in a world as dangerous as this one.

Of course, the system wasn't completely generous.

It only provided two things.

A new identity.

And the character itself.

Everything else had to be earned personally.

His current position as Special Operations chief?

That was built through five years of work.

Five years of missions.

Five years of bloodshed.

Five years proving himself over and over again.

This world respected strength above almost everything else.

And Hoshimi Miyabi possessed overwhelming strength.

Miyabi's fingers lightly tapped against the case file.

Then her eyes drifted toward the system window again.

[Current World: My Hero Academia]

[Character: Hoshimi Miyabi]

[Main Mission Condition: ???]

[Condition Progress: Incomplete]

Even after five years, the system still refused to reveal the actual mission.

It only displayed vague "conditions."

The only thing Miyabi knew for certain was this.

Until the condition was fulfilled.

She could not leave this world.