Arifureta: From Commonplace to World's Strongest Zero (Manga) Vol. 4

An apostle of the false god Ehit descends upon the Liberators, prepared to inflict death and destruction without mercy. The Liberators came to the desert to recruit Naiz, the wielder of ancient spacial magics, but his refusal leaves them alone against an overwhelming foe. Do Oscar and Miledi have what it takes to survive the ruthless onslaught of a divine emissary?