The heavens bear witness to the interplay of the sun and the moon, a celestial dance that ushers in a force destined to give birth to a formidable human-outcross or a being endowed with the extraordinary prowess of a monster.

With each reunion of the moon and the sun, another entity is brought forth, possessing an equivalent strength to the born human-outcross. They are known as "urion," heralds of light ordained to redeem the lives of the outcross. They are the chosen ones tasked with extinguishing those born as half-human, half-beast.

Four or more eclipses occur each year, often comprising two lunar eclipses followed by a solar eclipse. In every lunar eclipse, a human-outcross is born, believed to be a harbinger of chaos across the cosmos. This is succeeded by the birth of an urion, the servants of light, during each solar eclipse.

But what if a lunar eclipse coincided with a rare blue moon? What manner of outcross would be born then? Will they stand as an ally of the light, or a threat to the human race? Who is the designated urion destined to vanquish the mightiest of outcross?

In the midst of such cosmic questions, the universe holds its breath, anticipating the unfolding saga that will shape the destiny of worlds and beings alike.