In the easternmost corner of the country of Yanato, people have believed since ancient times that there are two worlds in this country.

In the far eastern corner of the country of Yanato, it has been believed since ancient times that there are two worlds in this land: the world at the top where the gods live and the world at the foot of the mountain where humans live. Princess Sakuna was born to a war god and a fertility god but led a lazy life, wasting the grains her parents had stored.