Gensoukyou:Eientei Manor

General Information
Eientei is large, old-fashioned Japanese mansion hidden deep within the Bamboo Forest of the Lost. It has hallways that lead out into the far reaches of the sky. It was created by Eirin Yagokoro for Kaguya Houraisan.

Eientei is currently occupied by a large group. Kaguya Houraisan and Eirin Yagokoro have been hiding there since their exile from the Moon. Other occupants include rabbits—lots of them—all under the command of Tewi Inaba and Reisen Udongein Inaba, who protect Kaguya and Eirin from intruders.

It is unknown to the majority of Gensoukyou that the residents of Eientei are from the moon. Eientei's residents and the few nonresidents who do know are keeping it a secret. Youkai are apparently aware that Reisen is from the moon (who proclaims it), but human villagers may not be. The average human and youkai know Kaguya as the princess of Eientei and its mistress.

Every month on the night of the full moon, the residents of Eientei hold a Moon Festival offering mochi with medicinal herbs pounded into them. Making mochi is thus the main occupation of the Earth rabbits. Eientei has also hosted a lunar expo at least twice, showcasing objects from the moon. Items include the American flag placed on the moon (confiscated from some fairies), moon rocks, an ox cart used to be able to fly long ago (but now is pulled by an actual ox), a kimono that shines, a lunar rover, and many other relics.

Both humans and youkai may come to Eientei for Eirin's medical services. Fujiwara no Mokou often provides escort through the Bamboo Forest of the Lost.