Saltherine Aldarake, princess of the Kingdom of Aldarake, dreams of traveling the world—a dangerous dream in a land where monsters roam the countryside as they please, and humans live behind high, strong walls. But when a chance meeting with traveler Mikoto gives hope to her dream, he shatters it soon after, as he reveals himself to be none other than Momotaro, ruthless demon-slayer. Though horrified by the gore Momotaro leaves behind, Saltherine is convinced more than ever that she needs to learn about the world beyond her walls, and journeys out...following the steps of the mysterious, charismatic, terrifying boy she met that day...
As the war rages on, Hawthorn and Frau discover Carbos’s gruesome experiments to develop artificial ogres. When Carbos retaliates, she is confronted by her former mentor and fellow witch Winnie, who borrows Frau’s body as they fight for magic supremacy. Meanwhile, Krow is killed while he and Todoroki attempt to persuade Domenica to stop the war. It will require extraordinary power to end the bloodshed. Who will step up and challenge King Darrus?