Homebrew Demi-God Species Details

A demigod is a divine mythological figure, a god who is either part human, or a minor god. ... Greek and Roman mythology have their share of demigods, and so does Norse — although in the latter case, a demigod is defined as a god or goddess who had a child with a mortal to create a Half-mortal, Half-Immortal.  

Demi-God Traits

+2 to Charisma, If magic User You get +2 to your spell casting modifier, If you are a non magic user you get +1 to your Dex Ability, If you do both you must choose one or the other.