Seven of Nine

Seven of Nine is a former Borg drone from Star Trek: Voyager.

Early Life & Assimilation
Seven of Nine was born to parents Magnus and Erin Hansen. She was given the birthname, Annika Hansen. Her parents were exobiologist (they studied non-human or alien organisms) who studied a then-unknown species known as Borg. When Annika was 4, they took her along with her for a long-term scientific mission to seek them out onboard their ship the USS Raven. For a couple of years, their research had gone without incident. They had found and followed a borg cube to the alpha Quadrant. They had come up with some kind of shielding which prevented them from being detected. However when they encountered an ion storm, it struck The Raven which damaged their systems including the shielding. They tried to evade the borg, but it was futile. The family was captured and assimilated. They became drones.

Borg Drone & De-Assimilation
For the next 18 years, Annika would be known as Designation: Seven of Nine, Tertiary Adjunct of Unimatrix 01. And like any other borg drone, she would unwillingly assist in assimilation individuals and entire races, and if necessary, kill. She would while being in the collective hear the collective voices of billions, maybe trillions of drones in her head. It wasn't until the Borg's war with a mysterious race known only as Species 8472, the borg designation for them. The race's true name was never revealed. The Borg attempted to invade their realm. But not only did Species 8472 fought back, they overwhelmed the borg due to the fact they could not assimilate them. The borg entered in an uneasy alliance with the lost ship, USS Voyager. Annika or rather Seven would serve as kind of an essmiary between the Voyager crew and the Collective during the brief, yet very destructive war. After they achive final victory against Species 8427 thanks to the Voyager's assistance, they would betray the crew and attempted to assimilate them by using Seven of Nine. They put her down and disconnected from the hive mind.

Recovery & Return to the Alpha Quadrant
Her recovery would not be easy. It took her years to adjust to being an individual. However she proved invaluable members of the Voyager crew. Seven develops social skills and engages in a romantic relationship with Chakotay. With her help and a few events individuals, allies, and races they would assist, they found their way back home.