Hailing from the four kingdoms, four aspiring huntsmen with different pasts, ideals, and goals enrolls into Beacon Academy. These four huntsmen-in-training finds themselves on the same team and living under the same roof as one another. Does this new team have what it takes to unite with one another as friends, allies, or even the family that one another needs?

Kensei Amagiri, the surviving heir to the Amagiri Clan, after losing his mother now lives on an island, where he fights for survival with his new friends. Left for dead by the Old Devils and Taro, is found by two legends who'll assist him in taking his fate back into his own hands.

Ten Years later, after Ogami and the others saved the world. They reformed Eden to how it was before the Prime Minister Fujimoto took command. The old code breakers continued living as Non-existent and judging evil. Heike took control of Eden, designating Yukihina as Code 01. Ten Years later he found five new candidates to be Code: Numbers.