Once, an angel existed in this world.

There is a place where such a legend is passed down.

An old palace, forgotten by human memory and abandoned at the end of long years. It is said that royalty once lived here, morning light poured into the white marble corridors, and at night, countless candelabras shone like stars.

However, separate from the records of royalty, a strange legend remained in that palace.

"An angel lived in the palace."

When and from where did they appear? Why were they there? And why did they vanish?

All of it is told vaguely, even in the oldest records.

Only one phrase remained common to every record.

"The angel is still in the palace."

Everyone thought it was just an old folktale.

The abandoned palace has been submerged in silence for a long time, approached by no one. Crumbling pillars. Dusty stained glass. Long corridors where someone must have once walked.

There was not a single sign of anything living there.

...Or so it was thought.

One day, a young researcher visits the palace.

The purpose is only one.

To find out if the "angel" left in legend truly existed.

And if they did exist, Are they still somewhere in that palace even now?

The researcher, holding old documents, opens the doors of the palace where no one sets foot anymore.

A hushed space. Faint light filtering in from afar. White curtains swaying even though there is no wind.

It was as if the palace itself had been waiting for someone for hundreds of years.

As the investigation progresses, the researcher finds strange traces.

A single angel depicted in an old mural. Records so decayed they are unreadable. And traces so new they could only be from the present.

The legend was not just a myth.

Something is certainly in this palace.

Eventually, deep within the palace that should be empty, the researcher senses a presence.

At the end of a turn.

Inside a quiet room where light filters through across the long years.

There—

Was a beautiful angel with white wings.

That smile was not one directed at someone met for the first time.

It was as if, from a long time ago, They knew he would come here.

And the researcher does not yet know.

That the legend left in this palace Was not merely a record of an "angel's existence."

What the angel was waiting for.

Why they never left this palace.

And—

Why they appeared before him only now.