I Am Reborn with Only Four Walls, Why Can't I Become the Richest Man?

A poor loser's rebirth by chance gave him the opportunity to change his destiny and environment. Faced with a family full of debts and a remote mountain ravine, he changed his past style and became down-to-earth, diligent and hard-working. Through hard work, he not only allowed himself and his family to live a respectable life, but he also actively helped his fellow villagers, turning a small ravine unheard of outside into a well-known and wealthy place. In the end, his career spread across the country and the world.