Death March to the Parallel World Rhapsody, Vol. 14 (light novel)
Having toppled another powerful foe, Satou's group returns to the Labyrinth City to celebrate, and there, he is greeted by a couple familiar faces. Zena and Karina have come to Celivera! Plans are swiftly made, including a sightseeing tour and a tea party, but they get put on hold when Zena runs into trouble! Her labyrinth dive took a turn for the worse when a monster kidnapped her, so Satou rushes in to save her, and ends up finding much more than he bargained for! It seems a Hero's work is never done...