Nobody know where it is, but it's a place that offers shelter to those who hate their lives or are trapped in the labyrinth of their own hearts... a mysterious hotel. Even now, those who are tired of their lives come to stay in the "Kiri no Mori" Hotel...
In 2012, the author released another chapter, not yet included on a volume, as part of the 35th anniversary of Petit Comic.
In her Ay (Aniversary Box - 2013) the author wrote that this work is unfinished.