Shinkai

Shinkai (神界, "World of the Gods"), also referred to as Heaven (天国, Tengoku) or the Divine Kingdoms (神の王国, Kami no Ōkoku), is the collective dwelling dimensions of the. As its name suggests, the Shinkai is not one single realm but a series of worlds that mirror the other worlds, depending upon the nature of the deities that inhabit them. It is suggested that the distinction between the various Shinkai is what inspired many of the mythologies, religions, and even cultures of the other realms. The different Shinkai are known as the "roots of the ", in that all of life and the state of the world, both past and future, can be traced back to the gods.

Takamagahara
The heavenly realm ruled by the sun goddess,, is known as Takamagahara (高天原, "Plain of High Heaven"). It is a magnificent kingdom that surrounds a massive palace where the sun goddess herself resides, populated by all manner of deities and the that serve them.

Yoru no Kuni
The realm of the night, bequeathed to the god,, by Izanagi is known as Yoru no Kuni (夜の国, "Land of Night").