The Middle Manager LV.99, Starts His Second Life with His Best Team! (Associated Names)

This dungeon is no good! One day, Narugoa, a single monster, is appointed as the mid-boss of the first dungeon, the Cave of Silence, which is the closest dungeon to the heroes’ home base. The dungeon is full of unmotivated employees (monsters), and Narugoa decides that this is not good enough, so he begins a…