Many Children, Many Blessings, I Will Flourish in the Fantasy World

Zhang Tian traveled to the fantasy world and became a son of a wealthy family. However, his talent was too poor and he had no chance of becoming an immortal in this life. Fortunately, the system arrived in time! Many children, many blessings system binding! The more offspring there are, the more prosperous the family's luck, the longer his lifespan and the stronger his cultivation! Moreover, if future generations enter the path of immortality, they can also feed Zhang Tian in return while cultivating. So, Zhang Tian raised his arms and shouted: "You damn immortal, I want to spread the branches!" While others were in seclusion and cultivating, Zhang Tian was keeping concubines! While others risked their lives to seize opportunities, Zhang Tian was still keeping concubines! Until one day, the Demon King came out of the forbidden area and threatened the safety of the human race, but was crushed into a pulp by Zhang Tian's palm. Only then did everyone in the world realize that the ancestor of the Zhang family was so terrifying!