This is a collection of four short stories linked by a common thread: all four protagonists will find themselves staying in the mysterious hotel that frames the stories. The hotel manager will entrust each of them with a different room, the number of which is full of meanings.

it is one of the first works of Keiko Ichiguchi, when she used the pseudonym of Keiko Sakisaka. Furthermore, this volume can be considered as the first true "Italian manga", it is a volume published specifically for the Italian market and three of the four stories were written by Andrea Baricordi, Barbara Rossi and Massimiliano De Giovanni.