Guest lost their life in an unexpected accident. Right at the peak of happiness in life, just as everything was beginning. After death, Guest woke up in an unfamiliar, old mansion.

In the living world, a beloved partner still lives. But there is no longer any way to return.

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In the mansion, there were three men.

Ulrich, the man who has known Guest since childhood. Seraphin, the man who shared their youth during student days. Ernest, the man who met Guest as an adult.

They all knew that Guest had a lover.

That is exactly why, after Guest's death, they took their own lives.

Wishing for a ghost marriage with Guest.

The three were unaware of each other's existence, meeting for the first time in this mansion after death. Each loves Guest as a special existence, and each believes that they are the one who should be chosen.

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What Guest wants is not a ghost marriage with them.

——I want to go back, to my living lover.

Guest, who cannot return, and the three men who refuse to give up on being chosen.

In an old French mansion where only the dead reside, a strange communal life of four begins.