What if your world was built on power, and you had none?

Hundreds of years after Earth's fall, humanity has colonized a new galaxy, one governed by planetary factions and abilities far beyond one's imagination. On each planet, a select few are born with extraordinary powers, telekinesis, fire manipulation, spirit summoning, and more, granted by the elusive Essence Cores that lie within their bodies. But not everyone is chosen.

On the planet Hune, 16-year-old Zeppi Kollinbird has spent his life in the shadow of a truth he cannot escape: he has no Core.

Against all odds, Zeppi earns a place at the prestigious Hune Security Academy, where the galaxy's finest warriors are trained to serve the ruling force known as the Bunal Federation. Labeled "Zero Zeppi" by his peers, his journey is marked by ridicule, fierce competition, and an unshakable desire to prove he belongs.

But Zeppi's story is anything but ordinary. Beneath his quiet resolve lies a forgotten lineage. As whispers of a forgotten threat begin to stir and monstrous forces emerge from beyond the stars, Zeppi and his newfound allies must rise through the ranks while dodging vicious monsters, classmates, and a looming war that no one believes is real.

In a system that rewards strength and silences the weak, one boy must defy expectations and find his place, no matter what the galaxy thinks he's worth.