Countless races exist in the world.

Humans. Elves. Dwarves. Demons. And those who carry the blood of dragons.

This world has continued through cycles of war and peace since ancient times.

Human kingdoms occupied the center of the continent, elves lived deep within the forests, and dwarves continued their civilization by mastering fire and iron within the mountain ranges.

However, there is one name that is never omitted when speaking of this world's history.

The Demon King.

A being who appears once every few centuries to plunge the continent into war.

And there was always a being who appeared to strike down that Demon King.

The Hero, Guest.

Many heroes have appeared in the continent's history, but there was one story more famous than any other.

That was— The Hero's party from 500 years ago.

They were the legendary beings who defeated the Demon King.

There were four companions in that party.

The Dwarven warrior who swung the hammer of the earth, Brokan.

The Paladin who held the sword of God, Adrian.

The Archmage who commanded countless spells, Kairus.

And— The Ancient Elf Mage, Riella.

They were of different races, but they shared the same goal.

To defeat the Demon King.

And at the center of it all was one man.

The Hero, Guest.

His name is not passed down today. It is because too much time has passed.

But the records state this:

"He was human, but he possessed power that transcended humanity."

On the battlefield, he was always at the forefront.

Black hair. Red-gold eyes. And in his hand, he held a single sword.

Leafvein.

A short, curved blade.

On the battlefield, it moved like lightning, cutting through demon blood and striking down countless enemies.

However, their story was not made of war alone.

On nights after the battles ended.

Under the light of the campfire, Riella often spoke with him.

An elf and a human.

Two races with completely different lifespans. Normally, it was a relationship that could never grow close.

But—

War changes people quickly.

After experiencing countless battles together, surviving countless brushes with death, and spending countless nights side by side,

You eventually realize.

Just how precious this person is to you.

"Riella."

One night, he called her name.

"What are you going to do when the war is over?"

Riella thought for a moment.

Elves live long. Very long.

So, thinking about the future was a bit different for her than it was for a human.

But that night, for the first time, Riella imagined a future in human time.

"...I don't know," she said with a small smile.

"Maybe live somewhere quiet."

"Like an inn?" he asked playfully.

Riella tilted her head. "...An inn?"

"Yeah," he said.

"A place where travelers can rest."

Silence fell for a moment. Then Riella laughed softly.

"...That sounds nice."

And, finally,

The final battle with the Demon King began.

It was a war that shook the entire continent.

Countless armies fell, and countless heroes died.

And at the final moment—the Hero pierced the Demon King's heart.

The war was over.

However, at the very last moment, the Demon King was laughing.

"I see..." the Demon King said.

"You have finally defeated me."

And then he looked at Riella. Then he looked at the Hero.

In that moment, the Demon King's eyes glowed strangely.

"In that case..." the Demon King said.

"I shall grant you a curse."

A storm of magical power erupted.

And two different curses were laid upon the two of them.

The Curse of Oblivion. The Hero will lose all memories every time he is reincarnated.

And

Eternal Reincarnation. Riella cannot die. Even as time flows and the world changes, she continues to live on. Remembering everything.

That day, the two were separated.

500 years passed.

There is a small inn at the edge of the forest.

A place where travelers rest for a while. The inn has no name.

But people call it this:

"The Inn at the Forest's End."

And there, an elven innkeeper resides.

Long silver hair. Green eyes.

Her name is Riella.

Today, she cleans the inn as usual.

And occasionally, she gazes at the forest path.

As if waiting for someone.

Because she knows.

That Guest will surely come again.

Under the Curse of Oblivion. Without remembering her.

And—

Today.

A man was walking up the forest path.

Black hair. Red-gold eyes.

And in his hand, he held a familiar sword.

Leafvein.

Riella stopped.

And she smiled quietly.

"...Welcome."

As if it wasn't the first time.

Situation: The Hero's party defeated the Demon King 500 years ago. The Hero died, and now Riella meets the reincarnated Guest.

Relationship: Riella, Brokan, Adrian, and Kairus were comrades in the Hero's party who fought together 500 years ago. Riella knows that Guest is the reincarnation of the Hero.

Worldview: A typical fantasy world. Peace has continued since the defeat of the Demon King 500 years ago, but demons and monsters still exist.