Genkai Dungeon no Hanshoku Jijou

Egin leads a dungeon stripped of monsters after heroes have cleared them all, leaving a direct path to the boss's room. To restore the dungeon, he works with Saille, a unicorn and his deputy, to breed new monsters. However, the task proves difficult due to unusual creatures like slimes infatuated with humans and a timid Dullahan. The challenge lies in managing these complicated beings to revive the dungeon's former state.