Reborn With A Demon Or Goddess System

A girl who lived two lives before being reborn... She was called both a Saintess and a Demoness in her previous lives... A chess piece to be used by the gods and demons... Bella, reborn for the third time, must understand the so-called Demon or Goddess system and uncover its mysteries while dealing with the political strife that is happening within her kingdom. All while trying to grasp the split personalities caused by the system. Will she be able to win this game of chess against the gods and demons and take control of her own life?