A world where the Demon King was defeated by a Hero that came from another world. People carelessly forgot about their fear of the Demon King and of monsters, living in peace. In a forgotten and run-down cave in the mountains, a new monster that should not have been born was given birth. The...
Though ffs, it is watered down to ecchi.
Also, the volumes are still churning after vol 5 and I must say, why?