キャスティ

"Hey, Delta! How long are you gonna sleep?! Don't you need to open?"
Age: Around 21 (appearance-wise 15)
Singer: Yoshino Nanjo

A girl living in the human city of Felion.
She is able to use Song Magic, an art that changes thoughts into magic. With this ability, she is currently an active member of the Divine Empress' PLASMA special forces team.
She is also part of the Genomis task force, which was assigned only to select members of PLASMA, but she refuses to find a permanent partner for the required two-person squads, so she sees little deployment.
She helps out in Delta's restaurant on weekends. She is the self-proclaimed poster girl of the restaurant, whatever that means...