Kamikura Island (神座島, Kamikura-jima) is an island which was discovered in 1999 by Minaka Hiroto and Sahashi Takami. The island is noted as being a "geologically impossible formation." The island suddenly appeared in an area in the seas off of Japan. On this island, they later discovered a giant extraterrestrial ship with 108 lifeforms, the Sekirei inside.
Some time later, after the founding of MBI, Kamikura Island was converted by Minaka into private land, removed from all maps and became an extraterritoriality. This caused the major authorities of the world to react in kind, and started the invasion of Kamikura Island of which the first attack wave was the strongest and most aggressive. The newly formed Disciplinary Squad's First Generation was able to withstand all three attack waves of the enemy army and was able to protect the 103 sleeping Sekirei. All Sekirei were raised, adjusted and grew up on this island before they were released in the outside world to find their Ashikabi.
Since its discovery, Kamikura Island has undergone a number of attacks. The second generation Disciplinary Squad consisting of Yume and Karasuba repetitively defended the island successfully, assumed to be from the same coalition of human forces from before.
The two most recent attacks by hostile human forces took place during the Fourth Stage of the Sekirei Plan, and months later, following the Plan's conclusion. They are both thwarted by the combined efforts of Ashikabi and Sekirei.
- Sekirei Manga chapter 71
- Sekirei Manga chapter 72
- Sekirei Manga chapter 03
- Sekirei Manga chapter 172
- Sekirei Manga Chapter 165
- Sekirei Manga 365 Days Without Her Chapter 7