In an alternate dimension of Japan, “sakoku”（closed country）continues to this day,

and traditional culture thrives. Meanwhile, domestic science and technology have evolved in a unique way,

allowing people to fly in the sky and possess communication devices. Despite this,

the people live relatively happy lives. In “this another” world,

the existence of millions of gods and yokai (Japanese supernatural creatures) is commonplace,

maintaining a balance with humans.

However, one day, the fervor of those opposing isolationism reached its peak,

and a rebellion finally broke out.

The war between the Japanese government and the rebels began.

As a result of “this war”, the balance of the world was disrupted,

and the millions of gods and yokai became ferocious. Furthermore,

as a consequence of the war, the fabric of space and time was distorted,

and people from different worlds found themselves blending into this world.

Astonished by the differences they encountered,

they began to invade this world in search of its beauty and comfort.

Thus, “the world” fell into chaos as the rebels,

the Japanese government forces,

the people from alternate worlds,

and even the millions of gods and yokai become entwined in an era of great war.

So will “this battle” ever come to an end...?