Odyssey of the unrivaled beast king

Al Casendra struggled in his world to reach the top of the world as a great inventor. In the end, he was killed by his creation. But that wasn't the end…. He reincarnated into a boy in another world, poisoned to death by his father… Because he was Manaless and dumb. Now that a dead boy came back to life. Al Casendra must fight to keep his life as he struggles not to live a life of mediocrity because of being manaless and inability to talk. What path will he choose to survive in this cruel world? Ding* [Mental Fortitude Test: Passed]