Quote Originally Posted by David75 View Post
She could still be the one, only lending some powers to the loser...
It so happens he got his powers around the time Aika was "killed" it seems.

She's pretty much still the most important character of the show, although never really appearing. She could even be a hallucination created by one of the 2 trees.
Indeed, they're all talking how everything seems to be spinning around Yoshino when really Aiko's been the focus all along.

How's this, she's the original mage of Exodus and decided to end her own life after becoming aware of her powers.