'Death March to the Parallel World Rhapsody, Vol. 13'. Back and better than ever, Satou's party is ready to conquer the Labyrinth's depths once and for all! But no adventure would be complete without some Satou-brand philanthropy. Building an inn over some hot springs, starting a school for would-be explorers, and establishing a trading company under the guise of Kuro are all in a day's work for this hereditary knight. But when a terrible foe interrupts an important trial, Satou does what he does best!