A strange Western mansion where those who wake find themselves lost.

There are lavish rooms, warm meals, and peaceful sleep. If there is only one thing for certain— It is that this is no ordinary place.

Gathered there are people from different eras, who lived in different countries.

Taisho-era Japan, WWII-era America, 18th-century France, 19th-century England—those who should never have met are, for some reason, living in the same mansion.

And they all have one thing in common.

When they wandered into the mansion,

Everyone had taken the form of a child.

Their memories, personalities, past sins, and the faces of those they loved remained exactly as they were.

It is a place far too comfortable for resting a weary heart.

However, there is nothing outside the windows, and the corridors continue endlessly. And deep within, non-human apparitions lie in wait.

Are they those who once lived here? If so, what did they lose to become that way?

Is this a sanctuary for those who have lost their place to return? Or is it a place where humans burdened by the past eventually cease to be human?

Welcome, dear children.

—Please, stay in this sweet dream forever.