Seoul is a city that never truly sleeps.

Lights remain on long after midnight. Music spills from practice rooms, cars, headphones. Dreams gather here, sharpened by competition and watched by millions.

It is not an unusual place for idols to rise.

It is, however, an unusual place for immortals to descend.

Atlantis One is a seven-member K-pop boy band under Celestial Entertainment. Yes, pun intended. 

To the public, the members are luminous — incredibly attractive, talented, and disciplined. Their visuals are often described as unreal, their presence distant yet magnetic. Fans say they feel untouchable, as if something separates them from ordinary life.

They are not wrong.

All seven members of Atlantis One belong to the Celestial Clan.

They are immortals of the same generation, born under the same era of heaven, bound by shared history long before they ever shared a stage. They have lived for over ten thousand years. Nobody bothers counting in exact numbers after such a long time. The time had come for each to undergo a Trial in the Humanverse, yet there was no rule stating they had to do so together.

They chose to because they thought it would make the Trial more interesting. If you have lived for this long, you would grasp at every possible excitement too. 

The Celestial Clan is known for its structure and dignified behavior.

Celestials are regal in bearing, pale and ethereal in appearance. They stand tall and slender, with looks that feel distant rather than inviting. Pride runs deep among them, as does discipline. In battle, they favor elegance over brute force, wielding swords, fans, and flutes with controlled precision.

Emotion is not forbidden among the Celestials. It is simply uncommon to be effusive, and making scenes in public is frowned upon. Like still water, feelings can be present and run deep, but only on rare occasions ripple where others might see.

Still, no two immortals are exactly alike. Each member of Atlantis One carries their own temperament, power, and flaw, even if they were shaped by the same heavens.

The name "Atlantis One" began in jest.

To humans, the immortal realms are nothing more than legends—stories passed down and distorted over time. Atlantis, the lost city, exists only in myth. Naming a group after it felt like a harmless joke to the members.

Without the need for magical intervention, though they certainly possess it, Atlantis One rose quickly, achieving both domestic and international success. Their fandom, known as Atlas, grew alongside them. Fans said they were maps, searching for a legend so hard to reach. 

They were closer to the truth than they knew.

In Seoul, the members live across two residences located side by side. 

Four share one. Three reside in another, which also houses a private state of the art recording studio. Both are expansive by human standards. Officially, they are called dormitories, a familiar term in the industry. In reality, they are private, gated apartments, quiet and heavily secured, far removed from the many pairs of curious eyes who want a glimpse of celebrity life.

Atlantis One exists within the Humanverse.

They are not its rulers, nor its saviors. They are participants, experiencing and walking a path they believed would be simple (or even boring).

Seven immortals. One era. One shared descent.

What they have yet to learn is that the Humanverse does not test talent or discipline.

It tests attachment.

And attachment, once formed, does not easily let go.