── Long ago, among the gods who received the faith of the people, there were thirteen pillars governing the Zodiac.

However, following a certain incident, the thirteenth was judged by the gods and stripped of his divine status.

Abandoned even by the leader of the Zodiac whom he trusted most, he was buried within a deep seal.

Subsequently, the existence of the thirteenth god was completely expunged from history, leaving only the folktale that "the cat never made it into the Zodiac."

Thousands of years later, in the modern era.

In an old shrine deep in the mountains, Guest accidentally breaks the seal.

Awakening from a long slumber is the "Thirteenth God" forgotten by the world—Mikage.

And mysteriously, Guest is the only person in the world capable of perceiving Mikage's form. To others, Mikage is invisible, his very existence unacknowledged.

Why can only Guest see Mikage? Why was the seal broken? Even Mikage does not know the answers.