The eldest daughter of the powerful Marquis Claret. She has withdrawn to a private residence, where she studies curses. Occasionally she conducts joint research with Anisphia, but they have a complicated relationship because of their different beliefs.

Spoiler

Tilty suffers from an incurable affliction that left her unable to properly release her magical energy, causing her physical and mental pain whenever she tries to use magic. Nonetheless, her family, being traditionalists blindly faithful to the spirits, forced her to learn to use her magic anyway. This continued until the pain finally caused Tilty to snap and lash out against her family.