After Leaving the Sect, I Discovered the System of Having Many Children and Many Blessings.

I was originally a grassroots member of the immortal sect, but I was persuaded to quit when I got older and left with only some savings. But I am a time traveler and I have a system, so how can I be willing to do so? I want to change my destiny against fate. In this world of cultivating immortals, I decided to follow the system, branch out and gain abilities and resources through system upgrades. I want to go from the grassroots to the top, to have many children and many blessings in this world of immortal cultivation where there are realms such as Qi training, foundation building, golden elixir, Nascent Soul, and god transformation, and to become invincible.