There Is No Life in This World, but I Will Have Many Children and Many Blessings

After traveling through time, I gained the system of many children and many blessings. I originally thought that the next step would be to expand the harem and become the best in the world. But the world seems to have just stabilized... It is commonly said that there is no life, so how can I have many children and be blessed! From lava to the flames of civilization, I walk on this continent. Child? They are all...