Nakabosu-san Level 99, Saikyou no Bukatachi to Tomo ni Nishuume Totsunyuu!

"--This dungeon is useless!" One day, Ichi Monster Nargoa is appointed as the middle boss of the first dungeon "Shijima Cave" closest to the hero's home base. There were only unconscious employees (monsters), and Nargoa started a major reform of the dungeon when this was not enough, but it was worth