Break Out of the Dungeon

Luo Fan's lifelong wish is just to live a happy life on the ground with his sister, to see the majestic mountains and the vast sea. But the reality is that as one of the poorest among billions in the underground city, he can only struggle for a piece of bread every day. Until one day, an unknown medicine was injected into his body and he became a superhuman being... PS: This book is also called "The World Needs Heroes"! Please collect and recommend!