My Cozy Home is Now a Tower?!

My house became a tower.

This is the other world, Eriel!

And we are currently inside the 78th floor of a massive, hundred-story tower in this very world of Eriel!

"Kyaaaaaaaah—!!!!!!!"

"Your voice is as robust as ever today!"

Right from the crack of dawn, the Darkness Requiem Dragon was letting out a mighty roar!

Yet, not a single soul nearby fled in terror!

In fact, everyone was laughing and chatting as if it were just another Tuesday. Yes, this was definitely a peaceful morning! (?)

Plenty of other mundane, everyday sights unfolded throughout the structure.

Adorable rabbits nibbled on weeds in the grassy fields of the 2nd floor.

Ghost librarians chattered away as they drifted between the bookshelves of the magic library on the 84th floor.

Residents bathed harmoniously in the sparkling carbonated hot springs on the 37th floor.

And finally, watching this entire scene through a crystal ball on the 95th-floor terrace was the master of this tower—an otherworlder from Earth who had brought peace to the world of Eriel.

"The dragons are chirping... the weeds are growing... I really hope these ordinary days go on forever..."

"I quite agree, My Lady. For your afternoon tea, would you prefer barley tea or black tea?"

"Cold barley tea sounds great. Give me a glass with plenty of ice."

A girl with striking snow-white hair, heterochromatic red and blue eyes, and large white wings that proved her angelic nature.

The Archangel of Majesty, Eriel Tricia, took a sip of the barley tea personally served by her demon bartender, wishing with all her heart that this peace would last.

In her past life, she had been an ordinary schoolteacher on Earth, but she had suddenly reincarnated into this fantasy world as an angel.

Mistaken by the locals for a deity descended from the heavens, she had somehow ended the war against the wicked demons. Now, in this newly peaceful world, she had claimed an abandoned tower as her home, enjoying a lazy, slow-paced life.

This tower was a sanctuary for everyone, rebuilt and renovated with her blood, sweat, and tears.

Humans, other races, and even demons and monsters lived here in harmony without conflict, referring to one another as "companions." Because of this, the residents of Eriel called it the "Tower of Peace."

...Though to Tricia, it was simply a cozy home where she could feel safe and relax.

"Ahhh~ The tea is so cold and refreshing, and everything is just so peaceful. I love this~"

This was the peace she had built through decades of active duty in Eriel.

She had truly believed this peace would last forever.

However!

Life rarely goes according to plan!

With a sound like space-time tearing asunder, the sky split wide open.

At the same moment, a blinding torrent of light poured down upon the tower—

"?"

Tricia's vision went completely white.

Earth. Right in the middle of downtown Seoul, just slightly off the main bustling streets.

Ruuuumble!

A massive tower materialized out of thin air!

The nearby residents gasped in shock, but it didn't take long for them to shrug it off.

"What, another tower?"

"This time it's right near downtown Seoul."

And who could blame them? For the past five years, towers had been popping up all over the globe.

To humanity, towers were no longer objects of dread. Instead, they were seen as paradises of opportunity—places where one could climb, grow stronger, and claim rewards that offered a shortcut to instant wealth.

Before long, TV news channels and NewTube started buzzing about the newly appeared tower.

"We bring you ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠breaking news. An unprecedentedly massive 'newborn tower' has emerged near the city center."

"The climbing difficulty of this tower has not yet been clearly identified—"

"Breaking news. We have received reports that the [Glory] Guild is currently recruiting a vanguard team to enter the tower—"

Naturally, the Tower Community forums exploded.

Thus, the mysterious tower became the hottest topic on the forums.

Meanwhile, what was happening inside the tower itself?

"Ugh, my head... What on earth was that just now?"

Struggling to sit up, Tricia saw that her demon bartender was completely knocked out. Rubbing her eyes, she began to assess the situation.

I'm pretty sure... a window popped up saying it was granting me Administrator authority.

Yeah, exactly like this...

"...Huh?"

Tricia stared in utter bewilderment at the system window confirming her new role.

Right on cue, more windows began to materialize before her eyes.

"...Tower Coins? Maintenance fee? Wait... Don't tell me my house just became one of those towers from those tower-climbing novels?!"

Tricia's head spun ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠as the windows flashed rapidly before her.

Without giving her a moment to catch her breath, yet another window popped up.

"Forget the name, this is MY HOUSE!"

"HEY!!!!!"

Having her home's name suddenly locked in as "My House Tower," Tricia threw a furious punch at the system window. However, lacking any physical form, her fist merely sliced through empty air.

Realizing that punching the system was a waste of energy, she turned her attention to the unconscious demon bartender beside her.

He just fainted from shock... Thank goodness.

There was nothing physically wrong with him. Under normal circumstances, she would have gladly let him sleep as a well-deserved break, but...

This was an absolute emergency. She immediately slapped his cheeks to wake him up.

"Gasp?! Lady Tricia!!! Are you unharmed?! More importantly, what on earth was that light just now?!"

"I'm not entirely sure either... But it's an emergency. Tell everyone living here to be ready to evacuate at a moment's notice. Inform Ghibsa as well!"

"An emergency?! Understood!"

The moment he received the order, the bartender spread his wings and took off at full speed.

With the bartender and Ghibsa dispatched to alert the residents, Tricia decided to inspect the tower's exterior to get a better grasp of the situation.

She didn't even need to go all the way down to the first floor. She could just open the window on the 95th floor and look outside...

Except...

"...Where did the window go?"

No, wait... Looking around, she realized the entire layout of ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠the room had completely changed.

This place was supposed to be a small terrace decorated with space-themed wallpaper and ceiling panels, lit by artificial glow-in-the-dark paint.

But now, as if the space had expanded infinitely, a vast, genuine starry sky stretched out above her...

...and the terrace she had been sitting on just moments ago was now floating serenely right in the middle of it.

"It got way bigger...!"

There was no way she could just walk out like this.

Did all the other floors expand like this too?

With that sudden thought, Tricia quickly peered into the crystal ball on the terrace.

The 2nd-floor grassy field had transformed into a massive, sprawling prairie beneath an open sky.

The 37th-floor carbonated hot spring was now nestled halfway up a towering mountain.

And the 84th-floor magic library had turned into a colossal labyrinth.

"Everything... changed...?"

As she was slowly checking the other floors one by one...

"Oh, come on! Seriously, wait a minute! Thirty seconds is way too short!"

Tricia pleaded desperately, but the system was utterly heartless.

"For fuck's sake..."

With one absurd situation piling on top of another, she almost let a stream of curses fly, but she barely managed to hold them back.

Quickly scanning the system interface, she realized she could designate the various companions currently living in her house (the tower) as <Boss Monsters> to fight the climbers.

Alternatively, she could spend Tower Coins to alter the environment of a floor, set traps, and customize various other settings.

It was essentially a progression-based management system designed to present climbers with appropriate trials and reward them accordingly.

...So, the system wanted to force her precious companions to fight against random climbers?

Did it expect her to drag her companions—who had finally found peace and rest after a grueling war—back into that horrific cycle of violence?

"I will absolutely never let that happen."

"Ah, seriously, why is the timer going so fast?!"

With less than ten seconds remaining.

Tricia frantically configured the trial and rewards, then slammed the confirm button.

The very first climber—the tower's first guest, but to Tricia, nothing more than an uninvited intruder breaking into her home—

...stepped foot inside the tower.