The Monster Comes Out of the Cage

Three hundred years ago, the innocent son of a demonic giant was trapped in a cage and died in a brutal fight with a wild beast. Three hundred years later, after a lot of changes, a new tavern was built on the place where the prison was. A blind old man accidentally ran into the cellar, and a piece of yellowed paper brought out a piece of the past. And the child back then has quietly opened his eyes... My name is Liang Chen. My master calculated that today is a good day. Therefore, please all immortals, go to death!