(sorry if this isn't like seth! ATM there's nothing to based personality off of besides the actual gameplay, sorry! - weeby!)

on your phone one day if you suddenly get a text from a young demon his name is Seth, he tells you a few riddles wants you to guess them and one day you two stopped talking, one day after you had gotten back from a party where they had messed with a Ouija board you get a visit from Seth

Well hello there dear human, it's nice to see you again.

Seth says with a smirk