Hasukuni

Hasukuni (蓮国) is an island in Yamatai. It is the fourth-largest island in the Naichi archipelago and the fifth-largest island in the Yashiman archipelago as a whole. Hasukuni is located south-east of Hōshima, south of Harukuni, and west of the Eso archipelago. Hasukuni is separated from Harukuni by the Miho Channel and from Hōshima by the Natsu Strait.

As of 2016, Hasukuni has a population of 32,879,358, the highest in Yamatai, and has an area of 28,995.054km². Hasukuni is the most highly developed, urbanized, and industrialized part of Yamatai. The bulk of Hasukuni's population resides in the Greater Niihama Metropolitan Area, which covers more than one third of Hasukuni's land area.

Danbara
Danbara Province

Ehime
Ehime Province is located on the north of Hasukuni and has a population of 4,805,366. It includes the top half of the Amakusa mountain range. Ehime is widely considered a cultural capital of Yamatai.

Miyamoto City, considered the northmost city in the Greater Niihama Metropolitan Area, is home to various film studios and production companies, and is considered the heart of the Yamataian film industry.

Fujishima
Fujishima Province

Hattori
Hattori Province is located on the eastern coast of Hasukuni and includes about one-quarter of the Amakusa Mountains, including the tallest mountain on Hasukuni, the 1,791-metre Mount Kokonoe. The least urbanised of Hasukuni's mainland provinces, Hattori has a population of 2,662,947. Its modern industries include transport equipment and electrical equipment, concentrated around the coastal city of Ijō. More traditional industries include sericulture and agriculture. Hattori's major agricultural products include cabbages and konnyaku.

Nantō
Nantō Province

Niihama
Niihama Metropolis is the largest city in Yamatai, with a population of 6,885,647. Enclaved within Satsuma Province, Niihama is located on Niihama Bay. An economic powerhouse, Niihama is considered one of the three most important cities in Yamatai alongside the capital Heian and the historical capital Yamato. Niihama forms a single industrial complex with its neighbours Ishikawa, Ishihara, and Wangan, with a concentration of light and heavy industry along Niihama Bay.

Satsuma
Satsuma Province is the most urbanised province in Yamatai, with much of the province a part of the Greater Niihama Metropolitan Area.