Millions of years ago, a solitary young man chosen by the Gods united the Five Divine Heroes to seal the monsters spilling from an ancient portal. For a brief moment, peace seemed possible.

But even heroes can break.

Driven by fear, envy, and ambition, the Five turned against each other, and the Unifier who tried desperately to keep them together vanished from history.

In modern Japan, the portals open once more. Monsters appear in the streets. Ordinary people disappear. The world begins to fracture under a threat it cannot understand.

And at that moment, the Unifier returns.

Unchanged by time. Carrying memories no one else remembers. Forced to face the same destiny he once failed to stop.

To prevent a new catastrophe, he must find the reincarnated Divine Heroes—individuals living ordinary lives, unaware of who they once were.

This time, he must decide whether to save them from their past, or destroy them before the past consumes the world again.