Sada Shrine, located north of Matsue, was once the most important shrine in the Izumo region. Enshrined in the central honden are 5 kami, the main one being Sadano Okami, along with Izanagi and Izanami, and the pair Hayatamano and Kotosakano. Izanagi and Izanami are well known, and in Izumo, Hayatamano and Kotosakano, 2 kami associated with the "divorce" of Izanagi and Izanami are also fairly common. Little is known of the main kami though except he is known as the protector of the Shimane Peninsula. He was born in a nearby sea cave called kaganokukedo and some posts on that can be found here.
The right (north) honden enshrines the Imperial kami: Amaterasu, and her grandson Ninigi. The left honden enshrines Susano, and something called Hisetsu Yonchu, which I think means "hidden four poles", about which I can find no information.
Sada Shrine is one of the many shrines where the mass kami of Japan arrive in November during kamiarizuki, though it is widely reported that they all go to Izumo Taisha.
Sada Shrine is also home to the UNESCO registered Sada Shin Noh. a form of Noh-influenced kagura that is believed to have influenced satokagura nationwide.
When I first explored this area many years ago I found it interesting to klearn that the earliest known yayoi site in Izumo was found in this valley indicating perhaps that this is where the proto-Japanese first settled in the region which would explain Sada shrines importance.