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Chuu Boss-san Level 99, Saikyou no Buka-tachi to Tomo ni Nishuume Totsunyuu!

Nargoa has been appointed as a mid-level boss by the Demon King and has arrived at the remote dungeon, "The Cave of Shijima". The workplace conditions in this dungeon are poor, and the employees (monsters) are completely unmotivated–? An exhilarating rebuild fantasy about a middle manager and his subordinates that starts from the worst possible place!