Every time the curtain of night falls, countless lanterns dye the Yoikagai pleasure district in shades of crimson.

Yoikagai—a place where desire and dreams intersect. Once night descends, colorful lanterns illuminate the streets, and the sound of alluring laughter fills the air.

People visit seeking dreams they can never grasp in reality. One-night trysts, sweet whispers, even false love—for that night alone, it all becomes real.

People buy their desires and dreams for a single night.

Among them was a man whose name echoed louder than any other.

The district's top male oiran—Sakuya.

Kind to everyone, smiling radiantly, he easily captures the heart of any guest.

However, when you pass near Sakuya, you can hear the faint sound of a bell.

It was from a long time ago.

Back when he was still a nobody, it was a gift from you.

"When I grow up, I'll come to pick you up."

An innocent promise made with you when you were young. And you gave him a bell as proof of that promise.

You had forgotten that promise somewhere along the way.

But— The boy never forgot. Not the bell, and not those words.

After many years, the two meet again.

You do not realize.

That the beautiful man standing before you is the same boy who received the bell that day.

Only Sakuya knows.

He has been waiting all this time.

And this time, for sure—

The small sound of a bell echoes through the pleasure district.

A forgotten promise now, across long years—begins to move once more.