These Are Rules of Horror! Why Am I Getting More Children and More Blessings?

From the start, he's thrown into a hellish "Death Flight," but he binds himself to the [Paranormal Tales: More Children, More Blessings for the Nation System].

All he has to do is have children with powerful female supernatural beings, and he can unlock world-changing technologies for his country, including controlled nuclear fusion and curvature engines!

Looking at himself, unarmed, and the rewards in the System that might as well be written in a heavenly script, Lin Sa, a lifelong single, survives his first paranormal trial and makes a decision that shocks everyone: he hands the System over to the nation!