Breakthrough with the Forbidden Master – So what if the Hero’s son is the Demon King’s disciple~ (Associated Names)

“Compared to our time, the current generation just aren’t as reliable” they said, “Still, isn’t he the son of the Hero?” How annoying. It’s been over ten years since the battle between mankind and the demons ended. The children of the heroes who saved the world are all grown up. One of them, Earth, was…