Rudeus's beloved magic teacher Roxy is stranded somewhere in a perilous labyrinth full of teleportation traps.She searches desperately for a way out, her strength gradually fading...but help is on the way.Rudeus, together with his father Paul and the others in their party, are ready for a rescue mission dungeon dive!It's Rudeus's first time exploring a labyrinth, and even though he's got some apprehensions, he won't shy away from the challenge until Roxy is home safe!