Tear is a Seventh Fonist in the military wing of the Order of Lorelei, the religion overseeing the Score. She Lost both parents when she was still an infant, and has been raised as a warrior ever since.
Jade is a colonel in the Malkuth Empire's military. He is both a skilled fonist and a master of the spear. He always smiles, so no one knows what he is truly thinking.
Guy is a servant in the Fabre household. He was first taken on as a babysitter, and ever since then, Guy has been like both a brother and a parent to the palace-bound Luke.