Inside the Cave of Obscenity

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 rundown cave in the mountains a new monster that should not have been born was given birth The monsters name was the Black Ooze It was nothing exceptional other than its black color an ordinary slime However this slime had the special characteristic of being able to take the abilities of the living things it swallowed It preyed on an insect that had paralytic poison as well as other animals Following that it attacked a human obtaining his knowledge and Desire Before long the monster established its target as the female mage that came to explore the cave This world still wasnt aware A Monster Was Born