Looking for Immortality Starting from Marriage

Li Qingsong has a secret. He has a system in his mind since he was a child. The function of this system is also very simple. In addition to a timekeeping function called a perpetual calendar, it can obtain replenishment of the bloodline qualifications of future generations. Thus, Li Qingsong started from a family marriage and embarked on his long road of life. As time goes by and eras change, Li Qingsong has long become a taboo legend in the mouths of countless powerful people. Only the Green Pine Forbidden Land has become an isolated island in the world, enduring countless calamities and lasting forever.