Ascended Fangirl: Of Sherlock Holmes. Fortunately, she lives in the kind of universe where being a Bunny-Ears Lawyer freelance detective is a valid career choice.
Bifauxnen: Viviane is tall, thin, and dresses in a dandyish way. Unconventionally for the trope, she does have long hair.
Bunny-Ears Lawyer: Invoked. Her goal in life is to be good enough at what she does that she won't have to spend too much energy trying to act normal.
Celibate Eccentric Genius: She identifies as asexual and generally describes herself as "not interested."
Character Tics: Drumming her fingers when she's thinking.
Defective Detective: Not terribly neurotic for the trope, but she is Creepy Good, socially inept, and has sub-par life skills.
Ditzy Genius: She doesn't have the greatest life skills.
GPS Evidence: Uses it in her first meeting with Marcella to narrow down where she lives.
Kindhearted Cat Lover: She's good with cats, although her method of befriending them involves strategically ignoring them until they make their own advances.
Sugar-and-Ice Personality: She's seldom deliberately unkind, but she's rather undemonstrative and has a hard time relating to people. But she's delighted when Marcella actually seems to like her.
