Child's life prior to her first traceable orphanage is a complete mystery. The furthest data on her was her age of three and a few rudimentary bodily information that managed to survive the fire of the orphanage she was picked up from. That place was the furthest link one could trace in her life. As if her unknown past was not enough, like a plague of bad luck, within a year, each and every single orphanage that took her in either closed down or had some form of catastrophic accident. It didn't take long for her to be given a rather unpleasant nickname of "Grim" as in Grim Reaper who brought death and destruction wherever she went. Child kept being passed on from one institute to another, all fearing the superstition that she would bring some bad luck to their doorsteps and at the age of five, now running out of orphanages, she was placed in a State institute which, by court orders, could not pass her along.
At this point, Child has developed a very lonely personality with the feeling of unwanted and solitude ingrained deep within her soul and mind. So when she was approached by a lady in a suit, asking her if she was willing to be of help to the world, child was extremely wary of her. Eventually, after several days of breaking down Child's barriers with silver tongue promises, she agreed. What it was was the Vicronican Security Council scouring the orphanages for children with good genetic traits for their projects. When they found out that Child had zero records, rather than just shrug it off, the agent in charge pursued her further, not willing to risk the off chance that Child was a good candidate. Whether it was good luck or bad for Child is hard to say, but the results of the test were more than what the agent had hoped. Every trait that they wanted was present and even some more. After reading psychological reports on Child, in the pretense of adoption and by playing psychological games with her, the agent convinced Child that they would love to have her in their family and that as long as she "didn't fight" with the older "family" members and be a good, obedient girl, then she was always welcomed. Faced with the prospect of finally having a family, Child followed after her in less than a heartbeat.
In actuality, it wasn't quite what she had in mind. The "family" was indeed quite large, with many older people. Many were quite terse and even with her lack of experience in love and affection, she could tell that most of them were rather stiff and objective. They put her through multiple tests and exercises that pushed her to the limit of her body and even when she was broken and unable to continue, many of the scientists remain unmoved. A rare few were nicer and a bit more caring, such as the female agent. Remembering the words of the agent, Child grit her teeth and persevered while her mind had begun to delude herself to the point that she truly believed that she would be loved if she appeased the "family" elders. This self delusion was the only way she could comprehend what was happening and she deluded herself to the point that she truly believed it. Going through whatever grueling training, augmentation and education throughout her entire life, Child sought to hear praises and approval and was most happy when they told her "good" or "very well". Eventually, this built up into her co dependency on the Council. The more sympathetic of the Council did provide her with a sense of progress, which stopped and helped heal Child's mind from scars from pre and current Council memories. Regardless, her mentality is still rather fragile.
In order to monitor and actually look after the young child without having a human growing overly attached to her, the Council had a custom gynoid built in order to be her caretaker. Whilst it is sentient, Sieghilde follows The Council's directive of keeping their investment alive concurrently with genuinely caring for Child. With both Sieghilde and the occasional approval and praise, Child's co dependency didn't spiral into a severe and crippling mental condition. As she grew up, she wasn't completely oblivious to her surroundings, given her rather good mental capacity. She somewhat understand the purpose of the programs she was put through since she came, but she still viewed the Council as her family. She knows that the "family" has a noble purpose and Child was willing to give everything for it. However, the circle of close "family" members have shrunk considerably, as she no longer encompass it to everyone in the organisation, but only to those she trust and feel like they genuinely do love or at the very least, treat her nice. The situation is not unlike that of immediate and extended families. Her co dependance is still extremely strong, hard, but fragile, but has been somewhat stabilised with the tether of Sieghilde and those within the organisation she trusts.
Even after the disasterous mission when she was 12 didn't derail her devotion and co dependency towards the Council by much. A rather routine (routine, by her standards, high risk by others) mission went horribly wrong when the experimental weapon she was meant to recover went off. The mission was considered a success, given that the threat was dealt with, but the loss of the experimental weapon was a big blow. In addition to that, their investment, Child, was severely injured to the point where her body was irrepairable. Rather than just terminate the program (which they would have had she had no further use), they decided to use her to test their newer cybernetic experiments. Every new breakthrough and invention that they develope would be trial tested and tested onto Child, providing it is compatible. The Council even went and deceived Child by saying that she important enough that they invested heavily into ensuring she lived because she was important to them. Therefore, that extended the lifespan of Child and solidified Child's delusion of the Council. Throughout the next few years, Child consistently got upgraded and became even more efficient at her tasks as she got the best technology and science could offer. She still doesn't really understand why the Council asks her to do what she does, but she only ever known that the Council was doing things for the greater good and as "family", she was to try her best to help them.
Despite her age, Child is an extremely capable and fearsome Agent. She is blindingly loyal to the Council and skilled at what she did, that is, eliminating opposition. While the scientists were disappointed that what drove her wasn't pure discipline and obedience, but something more familial, the head scientists and executives believed it was fine as long as she continued her job. They exploited this. While other operatives find having a child with them somewhat insulting, her skills could not be ignored and she was given proper respect amongst agents. Her co dependency meant she wasn't suited for leading, but definitely someone one can depend to get things done. All in all, the project heads believe that Child was a rather successful experiment in raising a super soldier with proper indoctrination. Whilst the physical aspect was smooth sailing, the indoctrination was still shaky. As long as she is alive and followed and assisted their operations, they so no need to dispose or archive her off, but instead, make use of her to their full money's worth...yet