Night Creatures in a Mansion
|Released|| Concept: February 3, 2012|
|Genre||Vertical Danmaku Shooting Game|
|Gameplay||Single-Player Story Mode|
|Followed by||Performance of Meadow Rain|
Nansei Yateishu ~ Night Creatures in a Mansion (南西 夜邸手 〜 Night Creatures in a Mansion lit. Evening Gripping Residence from the Southwest) is the 4th official project in Nansei.
It is the first Nansei project to be released as an original work while using the shooting game structure. The first track in the album was released on February 7th, 2013.