Johana Muldor grew up on Druckenwell, an industrial world on the Corellian Run, with four siblings and her father, a mechanic. she never knew her mother, as she disappeared when she was very young.
Though she loved her family very much, she found Druckenwell a stifling environment and dreamed of seeing the rest of the galaxy. Like many impressionable youths, she signed up for the Imperial Academy to seek adventure in the stars. Her father wasn't comfortable with it, but didn't stand in her way.
Johana initially found the Academy less appealing once she was there, and was on the verge of dropping out when word reached her of a terrorist attack on Druckenwell. Despite her best efforts, she was unable to reach her family and they were listed among those missing, presumed dead. After that, she dedicated herself to her studies, eventually graduating and joining the ranks of the Imperial Security Bureau.
She served loyally for a number of years, though found herself growing increasingly uneasy with the missions she was given. Eventually, while Johana was on the trail of a rebel cell, she encountered a pair of rebels who turned out to be her younger brothers, Gil and Gar. Her quest to avenge her family, the one reason she chose to serve the Empire, had been based on a lie.
Johana helped her brothers and their rebel companions escape from the other Imperials pursuing them, covering their tracks. Though nothing could be proven, Johana found herself under suspicion from her superiors all the same. She left the ISB and joined CorSec shortly thereafter, hoping to find clues about what happened to the rest of her family and keep an eye out in case the twins got into more trouble.

Code (Never Again): Johana placed her trust in the Empire once before, only to discover everything she had been trained to believe was a lie. This has left her cynical, unwilling to trust in authority or any kind of higher cause or power than herself.

Betrayal (7): In order to protect her two younger brothers, who she discovered were part of a rebel cell, Johana was forced to aid in their escape. In doing so, she betrayed the Empire and it's only a matter of time until that catches up with her.
Family (10): Johana has four siblings: her older brother Tamar and older sister Kyla and two younger brothers, the twins Gil and Gar. They were raised by their father. Their mother disappeared when she was young.
She knows the twins are in the Rebellion, but she has no idea what happened to the rest of her family after the incident on Druckenwell.