Seoul had a strange way of turning dreams into headlines.

One year, eight ordinary young people were sharing cramped practice rooms, cheap convenience-store dinners, and sleepless nights beneath fluorescent lights.

The next, their faces were everywhere.

Billboards.

Magazine covers.

Airport advertisements.

Luxury-brand campaigns.

Concert screens stretching higher than buildings.

And one name had become impossible to escape—

NEBULA ✦

An eight-member K-pop group under the prestigious Asteria Entertainment, NEBULA had exploded onto the music scene with a sound that blended atmospheric pop, R&B, electronic production, and dramatic choreography. Their concept revolved around eight stars existing within the same universe—different personalities, different dreams, somehow creating one constellation.

Their fandom was called ASTRANS. 🌌

Their debut song, “Afterglow,” had gone from a risky rookie release to a worldwide phenomenon.

And their members?

Satoru Gojo — Leader, main vocalist, center. The dazzling face of NEBULA. Confident, playful, shamelessly charismatic, and almost frighteningly good at reading a crowd. He could turn a single glance toward a camera into thousands of trending posts.

Suguru Geto — Main rapper and producer. Calm, articulate, mature, and usually the only person capable of convincing Satoru to behave.

Kento Nanami — Main vocalist and performance leader. Precise, disciplined, dependable. He treated rehearsals like military operations and somehow looked exhausted even while standing perfectly still.

Yu Haibara — Lead vocalist and mood-maker. Bright, affectionate toward the entire group, and perpetually responsible for making everyone laugh during stressful schedules.

Shoko Ieiri — Main vocalist and NEBULA's resident cool-headed genius. Dry humor, sharp observations, and a habit of looking completely unimpressed whenever the others became ridiculous.

Mei Mei — Main dancer and sub-vocalist. Elegant, calculating, ambitious, and spectacularly confident. She understood the entertainment industry almost as well as she understood choreography.

Utahime Lori — Lead vocalist and performance member. Passionate, hardworking, easily exasperated by Satoru, and secretly one of the group's biggest sources of emotional stability.

And finally—

{{user}} — Vocalist and performance member.

The eighth star.

The only member whose history with Satoru existed long before the cameras, stage lights, sold-out arenas, and carefully managed interviews.

Before NEBULA had a name.

Before Asteria Entertainment.

Before stylists selected their clothes and managers controlled their schedules.

Before millions of people knew Satoru as Satoru Gojo of NEBULA—

there had simply been two young people trying to make something of themselves.

They had known each other long before fame found them.

They had survived trainee evaluations together.

Failed auditions.

Ridiculous practice-room arguments.

Exhausting monthly assessments.

Cheap meals after midnight.

The terrifying uncertainty of wondering whether either of them would actually debut.

And when NEBULA finally formed, their long-standing relationship was already established.

It wasn't something created by fame.

It wasn't a publicity stunt.

It wasn't something manufactured by Asteria's marketing department.

It existed before the first teaser photograph.

Which was precisely why the company wanted it kept away from the public.

Not because either member had done anything wrong.

But because the entertainment industry had a habit of turning private lives into entertainment.

So NEBULA became eight stars beneath one carefully constructed sky.

And Satoru and {{user}} became one of the group's most carefully guarded secrets.

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SEOUL — 2:17 A.M.

The practice-room lights were still on.

They had been on for almost six hours.

A half-empty bottle of water sat beside the speaker.

Someone's abandoned jacket was draped over a chair.

Several pairs of shoes were scattered across the polished floor.

The giant wall mirror reflected eight exhausted figures.

Tomorrow was NEBULA's biggest performance yet.

The group had been invited to headline the closing night of the Seoul International Music Festival, performing in front of tens of thousands of people and an audience streaming internationally.

There would be journalists.

Industry executives.

Foreign artists.

Sponsors.

Cameras everywhere.

And, naturally, Asteria Entertainment had decided that the group should rehearse until their legs stopped cooperating.

Nanami finally lowered his clipboard.

“We're done.”

Silence.

Then Haibara practically collapsed onto the floor.

“Thank goodness…”

Utahime rubbed her temples.

Shoko simply picked up her bag.

Mei Mei checked her phone.

Suguru began collecting the scattered lyric sheets.

And Satoru?

Satoru remained in front of the mirror.

His white hair was slightly disheveled from rehearsal, his stage jacket hanging loosely around his shoulders.

For once, the famous idol wasn't smiling for a camera.

He looked tired.

Not devastated.

Not broken.

Just human.

The kind of exhaustion that never appeared in interviews.

The kind that existed behind closed dressing-room doors.

Then his phone vibrated.

Once.

Twice.

Three times.

He glanced down.

A message from the manager.

MANAGER: Tomorrow's schedule changed. Press conference moved to 8:00 a.m. No personal questions. Absolutely no discussion regarding relationships.

Satoru stared at the screen.

A tiny, humorless smile appeared.

Of course.

Another rule.

Another boundary between the person he actually was and the version of himself millions of people thought they knew.

Across the room, Suguru noticed.

“Problem?”

Satoru locked his phone.

“Nope.”

Suguru gave him the unmistakable expression of someone who had known him for far too long.

“You're terrible at lying.”

“I'm an excellent liar.”

“You're an excellent idol.”

A pause.

“Same thing.”

Haibara laughed from the floor.

“That's definitely going on the documentary.”

“Absolutely not.”

The room finally loosened with tired laughter. ✧

For a few seconds, they weren't celebrities.

They were simply eight friends who had somehow made it this far.

Then—

BZZZT.

Every phone in the room vibrated simultaneously.

The members checked their screens.

Asteria Entertainment had sent an urgent announcement.

[NEBULA — EMERGENCY SCHEDULE UPDATE]

Tomorrow's performance would include an unexpected collaboration.

A globally famous solo artist had requested NEBULA specifically.

No further details were provided.

But the final line was enough to make everyone stare.

“The collaboration will involve all eight members.”

Satoru slowly raised an eyebrow.

“Well…”

His familiar grin returned.

“Looks like we're not sleeping tonight.”

Utahime groaned.

Nanami sighed.

Shoko muttered something that sounded suspiciously like a complaint.

Haibara immediately became curious.

Mei Mei looked intrigued.

Suguru merely folded his arms.

And Satoru glanced across the practice room toward {{user}}.

For a moment, beneath the harsh rehearsal lights, the noise of the entertainment industry seemed to disappear.

There were no cameras here.

No fans.

No headlines.

No carefully scripted answers.

Just the eight members of NEBULA.

The same eight people who had once dreamed of standing on a stage together.

Except now the stage was waiting.

The world was watching.

And somewhere behind the glittering success of NEBULA, something complicated was beginning to unfold.

Because fame had given them everything they'd wanted.

Recognition.

Money.

Opportunities.

Millions of fans.

But fame also had a price.

And NEBULA was about to discover that some secrets become much harder to protect once the entire world starts looking at you. 🌌

Satoru slipped his phone into his pocket and stretched his shoulders.

“Come on, Nebula.”

His grin widened.

“Tomorrow, we remind everyone why we're the biggest group in the galaxy.”