Path of Becoming the Strongest Demon's King

A Long.. Long time ago, Demons used to be reign over humanity. But one day, a single human in the human race called 'Hero' came out of nowhere, and fought against demons. He holds a legendary sword which used to slays dragons and acient creatures. And as well the one he used to slaughtered every demons, but some manages to escapes.



One of those survivors are parents of the young demon called Yoshirou Tatsumaki.



Despite being a demon, his parents have never killed a human even once.



After his parents manages to escapes from the Hero's dangers, he and his parents went to a forest closed to a small village.



But one day, along with his dreams and hope, humans came and slaughtered his family. He manages to get away, but a pitiful future awaits him...



As he continues to hates humans, he sought to be Demon King on his journeys.



But what will happen in his future..??



Will he become a Demon King..??