I'm Spreading My Wings in the Fantasy World

Traveling through the fantasy world, Lin Xuan discovered that here the strong are respected and blood is supreme. In despair, he was bound to the [Many Children, Many Blessings System] - you can become stronger by spreading your branches! Others have practiced hard for hundreds of years, and he is not as happy as he is to have a son. I thought it was just a leisurely family upbringing, until the dark turmoil came and the gods and demons invaded the world. When the strongest human beings fell one after another and the whole world was in despair, the star gate opened behind Lin Xuan. The eldest son of the Immortal Emperor who controls the sun, the eldest daughter of the saint who rules the underworld, the triplets of sword immortals whose sword formation reaches the sky... They all bowed in unison: "Please give the order, father, and we will fight for the family!" At this moment, the enemy was horrified to realize that they were no longer facing a single person, but a supreme race of gods that spanned all realms.