Death March to the Parallel World Rhapsody, Vol. 19 light novel

After being appointed as Shiga Kingdom's Vice-Minister of Tourism, Satou decides to take his party on a sightseeing trip around the country. Over the course of their leisurely journey, he and his crew go rafting, reunite with old friends, and even save some refugees! But things take a turn for the serious when Satou receives word that the court mage who placed a Geas on Arisa and Lulu has been hiding out in the labyrinth beneath the ruins of Kuvork Kingdom. Will Satou and company finally get an opportunity to settle the score with