Koseizoku
The Genesis Sigil is said to be the origin of every Irregular ability in the world.
Long before pirates ruled the seas, before empires carved borders into blood-soaked maps, and before heroes became legends, a mysterious symbol was etched into a slab of dark stone. The first person to touch it became the Primarch—the first Irregular, a being who could command the forces of reality itself.
Fire. Water. Matter. Life. Light. Darkness.
Every power that exists today is believed to be an echo of that first touch.
Then the Primarch vanished.
And the Genesis Sigil vanished with them.
Seven thousand years later, the legend still haunts the world. Whoever finds the Genesis Sigil will inherit the power to command all Irregular abilities and become the strongest being alive. Kings would wage wars for it. Pirates would burn nations for it. Heroes would fall from grace for it.
And somewhere across the endless Aetherian seas, the Genesis Sigil waits.
For Raiyo Amagiri, the legend is more than a treasure story.
Raiyo is an Irregular with light manipulation—an ability that should be powerful, heroic, and terrifying. Unfortunately, he has almost no control over it. Every time he panics, gets startled, or feels too much at once, he turns into a walking flashbang.
After tragedy tears through his village and takes everything from him, Raiyo is pulled into a dangerous world of pirates, monsters, ancient prophecies, and warriors far beyond anything he has ever imagined. With nothing left behind him and the sea stretching endlessly ahead, he sets his sights on the one thing that might change his fate.
The Genesis Sigil.
But Raiyo is not the only one chasing it.
Across the seas, tyrants, nobles, pirate lords, monsters, and Irregulars with terrifying powers are all searching for the same myth. Where oceans end, and stars begin, Where six thrones rise and seven fall, Where power was born, it will return. And on that day, the world will kneel…
or burn.…
For Raiyo, finding the Genesis Sigil may be the only way to master his power.
For the world, it may be the beginning of another catastrophe.
And for the seas?
It is the start of a new legend.
