魔王軍最強の魔術師は人間だった

Ike is the Demon Lord army's strongest magician, a spellcaster who can take a fortress on his own and whose power unsettles allies as much as enemies. The rank is real; the demon is not. Ike is a human passing among monsters, and he leans on knowledge carried over from another life to hold the disguise together while climbing to the position of commander. Every victory he wins raises his profile, and a higher profile makes the secret harder to keep.