Going to Another World on Your Own! ～a Story That Begins With a Not-so-sweet Upbringing

A young man who has longed for something in another world since he was a child and dedicated his youth to it goes to another world on his own. And, while gradually blooming the ability of the garbled skill that was thought to be a miss skill in the world, the hero goes around and grows with his brain and effort, a success story in a different world that begins with a not so sweet upbringing.