Phylactery

These are the souls that Sei has trapped in her music box.

Ghosts

Suki

Space traveller from when the Expanse was founded, who died when her ship's engines failed and she crashed. Spent much of the intervening time asleep. Has been unable to leave the area of her demise, which is now the Garden of the Lilium Academy. Wants to explore the world with Sei.

Demons

Succubus

The demon sent to kidnap Sei and steal the Phylactery. Was trounced by a golem comprised of soil(which Suki used as a body to fight with) and turned incorporeal, which allowed Sei to trap her. Works for the demon Greed, but hates being bound to him (he ugly). Prefers women, and is actually female (possibly). Is currently dormant due to Sei's magic.