Sharen, Colon Special Forces Agent No. 0 and unit commander, possessed such extraordinary skill that she was considered the strongest among non-Descendant fighters. Her stealth tracking ability was nearly perfect, and her melee battle skills were so deadly that she has killed more Vulgus than even the heavily armed Descendants. It was often said that should she possess Arche, she would be able to assassinate Karel… However, Sharen herself did not welcome this reputation. The reason was that the Vulgus assassination unit, which Sharen and the Colon Special Forces had been chasing, had slain more Albion troops than the Vulgus Sharen had killed, all before vanishing into the shadows.
Eventually, in order to prevent the gradually increasing allied casualties, Sharen decided to track down the deadly cyborg Vulgus. The operation's mission was to determine the location of the mark and call in a Descendant strike force. But Sharen had no intention of handing the final blow to this assassination unit to anyone else. Around this time, Sharen's battle skills were at their peak, and according to the observation of the agents who deployed with her, some of her movements were displaying an electrical phenomenon which seemingly appeared to be an Arche ability. Nobody doubted her inevitable victory.
However, the operation ended in failure.
Sharen, who awoke in an Albion operating room, could not believe her eyes. Her limbs were nowhere to be found, and she was writhing in agony in the middle of hospital room, with just a bloody torso. According to the operation report, the Vulgus assassination unit had ambushed the Colon Special Forces in a display of skill far superior to Sharen's. Trying to save her soldiers, Sharen suffered fatal injuries, losing consciousness. Luckily, she was rescued by No. 17, an agent who had been deployed as backup. Although they had managed to successfully retreat to Albion, Sharen was at death's door. Her only chance of survival was to transplant her major organs into a newly developed Arche Drive body prosthetic and pray she possessed Arche.
Sharen could not allow herself to die just yet. She had to eliminate the cyborg who brought about this chain of events. Even if she had to live every moment with the feeling of pain-like blades cutting through her body, she would pay the enemy back with many more blades than that.
As her consciousness started to slip away, Sharen focused and projected her will. With this, her body started to slowly… and cautiously… replace itself with artificial muscles, synthetic fibers, and an obsidian Kuiper frame.
Exclusive Equipment, Arche Drive Full-Body Prosthetic Colon:00
From the planning stage, this experimental full-body prosthetic technology was controversial. The Arche Drive was originally designed to replace lost body parts, so the idea of attaching it to the entire body raised ethical concerns about prolonging the suffering of the wounded, who were effectively dead, to utilize them as weapons of war. But for Sharen, this was a minor concern. Rather, she was constantly demanding physically taxing heavy weapons, new technologies and firmware upgrades, controlling her body prosthetic with only her Arche and sheer willpower.
"I'll request the feature to block pain… when I get my revenge."
- Sharen