The Reformation of the World as Overseen by a Realist Demon King, Vol. 4 (manga)

On a quest to secure skilled craftsmen to expand his castle town, Astaroth teams up with a group of dwarves beset by a powerful necromancer. After coming up with a plan to retake the village, Astaroth marches upon his foe, but will he be able to emerge victorious and save the dwarves?