Peterene Sera

Peterene Sera is a priestess to the Goddess of Chaos, Alaina.

Princess General
When she was little, a Demon God killed her parents. Louie's father Guraza took her under his protection, and by the time Louie begins his war against humanity, she was working as one of his servants.

Initially Peterene wore a heavy cloak with a hood concealing her face. Everyone believed this to be a way of concealing burn scars that disfigured her when she was younger, but it was actually meant to conceal the fact that she was human, and was Guraza's idea. By the time Louie discovered this, his own opinion of humanity had begun to soften, and Peterene was able to serve openly and without fear for the remainder of the series.

Battle Goddess Verita
Peterene serves Louie's government as head priestess before she is enlisted to help in his invasion of Bezelbebub Palace.

Subsequently, Peterene laments being unable to stay at Louie's side like Karian because being human, her lifespan is not as long as theirs. For this reason she sets off to become an apostle of Alaina. She returns to Louie's side after achieving this 50 years later and continues to travel with him at the end of the game.