Dark and Troubled Past: Revealed in Chapter 3 that she was sexually assaulted by one of her clients. This traumatized Tachibana so badly that she avoided love ever since.
Amida Goto
Super High School Level Bassist
Hidden Depths: It's revealed during the Chapter 1 trial that because of his multitude of learning disabilities, he's developed an inferiority complex about his intelligence.
The Rock Star: Bassist for a popular alternative rock band.
Kurenai Irie
Super High School Level Architect
The Stoic: Blunt, serious, and to the point about pretty much anything.
Samuru Torisei
Super High School Level Cartographer
Nervous Wreck: Extremely timid and constantly stutters when he speaks.
Psychic Powers: Claims to have experience with these. Doesn't.
Unfortunate Names: The second motive reveals that her real name is Hanako Hanakiyo, which translates to "flower child pure flower", a name that greatly contrasts her talent.
Took a Level in Kindness: Makes an attempt to become more amicable in Chapter 2. This did nothing to prevent his secret from staining his reputation, though.