Devi is described as petite with red hair. She generally portrays a flirtatious demeanor, however is very serious when it comes to business. Before being dismissed from The University, Devi had achieved the rank of Re'lar.
In The Chronicle Edit
Throughout the Chronicle, Kvothe borrows money from Devi several times, and something of a friendship develops between them. Devi has an extensive collection of rare books useful as reference material to students of various subjects at the University. She demonstrates on multiple occasions a ravenous appetite for arcane knowledge. She is accomplished both in Alchemy and Sympathy, and is one of the few people depicted as besting Kvothe in a head to head contest of the latter.
Devi claims that her minimum loan amount is four talents, and her interest rate is fifty percent every two months. This is roughly four times the highest rate charged by a legal moneylender. Later, Kvothe establishes that Devi has no minimum loan amount, and her real business is in creating a situation by which the person taking out the loan cannot repay and needs to owe her favors instead. It is implied Devi was removed from the University for malfeasance. When Devi and Kvothe clash in The Wise Man's Fear she comments that the latter is very good but questions how he can do what Master Sympathist Elxa Dal could not. She goes on to say that she was expelled because they feared a woman who could beat a master of sympathy while so young.