A Letter Bee/Vice supervisor of the "Hive." Aria acts as Lloyd's right hand, taking care of the minor things for him. She was the girlfriend of Gauche Suede.

Aria's Spirit Amber ability is the Heart Restoration Bullet, which she executes by playing music on her violin. The music has a healing effect on everyone who hears it. The closer one stands to her while she is playing, the stronger the healing effects.

(Source: Wikipedia)