Overlord, Vol. 3 (manga)

Posing as an adventurer in order to gather information about the world he's found himself in, Ainz ventures forth into the city, posing as an adventurer in order to gather information about the world he's found himself in. Finding work was easy enough, but when it leads to a plot that will devastate the city, he's forced to take action—and will his powers be enough against the terrifying warrior Clementine?