As Koichiro searches for his granddaughter and Ryoma Mikoshiba returns home, trouble brews behind the scenes. Ryoma’s plot of land may be peaceful for now, but Saito and his comrades are slowly and carefully plotting a massacre of this world’s people.

Meanwhile, Kevin infiltrates the Azure Sky Nimbus, hoping to secure more vassals to stabilize Ryoma’s position in this world—and facing dangers as he bonds with the group’s leader.

Will Saito’s ploy be successful? What drives him to such a degree? And can Kevin successfully turn the Azure Sky Nimbus to his side?