My Unique Skill Makes Me OP even at Level 1 Volume 11

The drops in all of the dungeons of Cyclo have mysteriously disappeared! Clint the Dungeon Chief tasks Ryota with finding a solution. Having a hunch that the root of the problem lies in Nihonium, Ryota goes with Alice to conduct an investigation. Waiting for them there is the dreaded Dungeon Master of Nihonium…!?