Hōshima

Hōshima (朴島) is the smallest of the main islands of Yamatai, and is part of the Naichi archipelago. Hōshima is located south of Harukuni and west of Hasukuni, and is divided from the former by the Kobushi Strait and the latter by the Natsu Strait. It has an area of 14,124.3 km² and has a population of 4,402,638 as of 2016.

History
In ancient times, Hōshima was also known as Futana.

The Shimizu Clan was awarded control over the island of Futana for their good service. Over time, the name of the island became Hōshima. Subsequently, when the theocracy began, the Shimizu Clan fought in the Taguchi Rebellion and were defeated. The area came under the control of the Shrine-loyalist Ogawa Clan. Subsequently, the Aozora Revolution partly began on Hōshima.

Hirose Province
Hirose Province is located on the western side of the island.

Kobushi Province
Kobushi Province is located on the eastern side of the island.

Sakurajima Province
Sakurajima Province is located on the island of Sakurajima.