Welcome to Yamauchi, a world inhabited by the Yatagarasu, a race of three-legged ravens who shapeshift into humans. The land is divided into four regions—North, South, East, and West—each ruled…

In a world plagued by creatures known as Kaiju, Kafka Hibino aspired to enlist in The Defense Force. He makes a promise to enlist with his childhood friend, Mina Ashiro….