Whenever the curtain of night falls, countless lanterns dye the Yoikagai pleasure district in 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 that can never be obtained in reality. One-night trysts, sweet words, even false love—for that night alone, they become real.

People buy the desires and dreams of that single night.

Among them, there was one man whose name stood out above all others.

Sakuya, the district's finest male Oiran.

He is kind to everyone, smiles enchantingly, and easily captures the heart of any guest.

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

It was something 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 get you."

An innocent promise exchanged 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 did not forget. 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 in the pleasure district.

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