Age: 26

Height: 167 cm

Blood Type: B

Threia is an historian from The Center and an acquaintance of Marion Quinn. She specializes in ruin investigation and researching the history of the past era.

Described as being a bit "troublesome" by Marion, she often appears calm, but is somewhat easily upset. Escha even described her as "a little bit scary" after their first encounter. She does not associate much with other people and finds social disposition as nothing but trouble.

She has a little bit of alchemic knowledge from her researches of the flourishing era of the land, but is not an alchemist and cannot perform synthesis. She dislikes to only analyse material reported by the researcher team and does field work without regard to the risks. When devoted to her research, she sometimes neglects cleaning, eating, and sleeping, sometimes resulting in that she is unable to work at her workplace. Her uncle is wanted for various crimes, including destruction of alchemy institutions, and her family are treated like accomplices. However, when asked about information about her uncle she claims to not know anything about him and she does not admire her uncle.

She does not get along very well with Reyfer Luckberry.

(Source: Atelier Wikia)