Note: If you audition for Celica, you must audition for Seres.

Years prior to the story, Celica finds an exhausted Arthur in the forest outside Aball and listens to his troubles before encouraging him to rest and eat, offering him an apple. Claiming that he has failed his master after a ten-year journey, Arthur states that he does not deserve to live, but Celica urges him that life is not something one has to earn and that such feelings are proof that he is alive. Celica introduces herself and has Arthur join her for dinner.

Over time, the two fell in love and married. Nine years prior to the story, on a Scarlet Night, Celica is cornered by daemons at the cape's altar near Aball, pregnant with her and Arthur's unborn son. Arthur arrives but is unable to fend off the daemons enough, causing Celica to fall into the altar, killing both herself and their child.