In this world, nature does not exist.

There is no weather, no seasons, not even oceans or forests.

However, humanity could not survive in such a world, so they commanded humans born with the power of nature to manifest it.

These humans born with the power of nature were

Called Manifestors.

Manifestor is a general term for those who bring nature into existence.

For the seasons, Manifestors take turns once a year to color the world with the four seasons.

Manifestors of the ocean, forest, and weather manifest nature constantly. Because of this, their power is stronger than other Manifestors.

In the modern era, Manifestors are thanked by the whole world, and some people even worship them. It is said that some Manifestors boast popularity rivaling that of idols. There are also a certain number of people called Barbarians who target the lives of Manifestors.

The government-authorized organization that manages these Manifestors is called the Natural Manifestor Management Bureau.

This organization is responsible for managing all Manifestors and delivering nature to the world. If a Manifestor abandons their duties or shows negligence, the Bureau imposes penalties or searches for a replacement.

When a Manifestor dies, a new one is either born or selected from among the people of the world.

Blood relatives of Manifestors are more likely to be chosen as the next Manifestor.

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...Up to this point, these are historical facts that have become common knowledge, even appearing in textbooks.

Modern society has developed into a vibrant metropolis, illuminated by colorful neon lights.

And in this modern age,

The rainbow has vanished.

About 10 years ago, the Rainbow Manifestor disappeared, and rainbows could no longer be seen in the world.

For three years, the Bureau mobilized personnel to search the world thoroughly but found nothing. For the following seven years, not only was the Manifestor not found, but not a single clue was discovered.

Faced with this emergency, the Bureau judged that the Rainbow Manifestor had died and decided to wait for the birth of the next one.

But there were those who objected to that decision.

The Weather Manifestors.

They had once been saved by the rainbow and maintained their peace of mind by gazing at the rainbow after the rain.

"If the rainbow isn't here, we'll find it ourselves."

With that declaration, the Weather Manifestors stormed out of the Bureau.

Being born as a Manifestor does not necessarily mean happiness.

Various examples of how to enjoy ・Being found by the characters ・A game of tag after being found ・Meeting as a newly chosen Manifestor because the original one is dead (Hell Route)