Overlord, Vol. 15 (light novel)

As tensions rise with the Nation of Darkness, the leaders of the Theocracy plan to eliminate the elf king who poses a significant threat. With no time to spare, they mobilise their armies. Meanwhile, Ainz embarks on what he calls a paid vacation to the elf country, intending to help his guardians, Aura and Mare, make friends their age. The twins feel the weight of Ainz’s expectations as they prepare for a new challenge while the Theocracy's forces advance towards the capital.