In the Old Age of the Reborn Emperor, You Want Me to Have More Children and More Happiness?

Xu Fan traveled through time and became the invincible Emperor Zhetian, but Emperor Zhetian is about to expire and is about to die! Just when he was desperate, he suddenly awakened to the "Many Children, Many Blessings System". As long as he gives birth to a child with a stunning beauty, he will receive rewards such as longevity, elixirs, magical powers, and elixirs! So Xu Fan went further and further on the road to find stunning beauties in order to survive...