A game that lengthen lives. Everything in it leads to Immortality. However, although well-designed, it was just just a game. Most were not interested. Their lives were focused on the reality. But, when all of humanity faces a disaster, people soon discovered the game to be the last safe haven. In the new world where the pros ruled all, the elites of the old could only adapt and adjust. As humanity strives anew, they built a primeval virtual world, they find their own Daos, and they become Immortal!