Han Yu-bi survived five brutal years on another world and returned as one of its greatest archmages.

The Earth waiting for him is barely recognizable. Korea has been abandoned by the Earth Alliance, its survivors left to fend for themselves while powerful Returnees rule the rest of the world through advanced technology.

There's just one problem with their new world order.

None of them know magic.

As Yu-bi gathers survivors, teaches true spellcraft, and turns the forgotten dead zone into a growing nation, allies and enemies alike begin realizing that the strongest Returnee on Earth never came back with technology—he came back with an entirely different civilization.