Kitaboshi Hokuto has no magic, no special abilities, and no idea how he ended up in a plague-ravaged world where the very air corrupts mana cores and transforms any living being into something that was once recognizable.
The disease Voidborn turns victims into twisted creatures, but while most fight for a cure, fanatic cults worship the plague as their path to transcendence. Hokuto just wants to survive, but when he encounters others struggling against the same horrors, survival isn't enough anymore.
Caught between different factions with their own agendas, Hokuto must decide how far he'll go to save people he barely knows. In a world where insanity is the engine that drives everything forward, helping others becomes both his salvation and his curse.
But it might also be the only way to stay human.