She's neither a lightner, nor a darkner. She's...something in between. She used to be a lightner, but was sick with an incurable illness since she was born, one that was last seen centuries ago, an illness called Prima Macula. Her parents, who were the experts in science, has never seen anything like it and were very concerned for their daughter, since its symptoms were headache, weakness, and the black blood, which they've never seen before in their entire career. More scientists joined them, all determined to find a cure, and that's how Eliza met her first friend ever, a boy named Jacob. For some reason, whenever she was around him, the aches and symptoms were seizing, and she didn't felt as much pain around him. And so, he always kept her company, and they became best friends and made a promise to each other, that they're going to be together forever no matter what. Though, unfortunately it wasn't possible. One day, she managed to sneak out of her room into the library to try and find out about where did this illness came from. And she did managed to find it, though the revaluation shocked her. Last time this illness existed was several centuries ago, and it ended with a terrible tragedy. Shocked that there is no cure and that her death is inevitable, she started looking for the way how to keep herself alive if she is going to die, and she managed to find one, though she kept it a secret. One night, she sneaked out again and now, she went into her own little laboratory, since she always wanted to be a scientist like her parents. She found out that if you'll be able to create a Dark World, you'll be able to stay alive. And so, she took the syringe, filled it with a liquid that helps to keep the human souls intact, and tore two small pieces of her own soul and puts them into the syringe before closing it so that the two pieces will stay intact and fuse so that she'll still be alive in the dark world. And after that, she kept her plan a secret from everyone, even from Jacob. And through continuing to live her last years, she managed to understand her illness better. Prima Macula is like a part of herself, one that wants to protect her from any danger, one that craves love and understanding. That's why when she's around someone she loves very much, it doesn't hurt like it usually does. And she even managed to get a power to control rats and mice, for some reason, and they all became her little companions, especially a cute little white rat that she decided to keep as a pet. But then, the day when she'll die has finally came. Some crazy scientists discovered that Eliza has such an illness and they've decided to kidnap her so that they could use that power all for themselves. They've attacked and killed everyone who would stand in their way. Jacob even sacrificed his own life to save Eliza, which was where everyone drew the line. She lets Prima Macula control over her and she attacked everyone who killed her family and friends with no mercy while endless tears streamed down her face. Eventually, everyone were dead, but it costed a huge prize. Her body couldn't control the power that this illness had, and it spread, threatening the whole world to be covered in plague once again. But, Jacob did managed to survive and witness it. Upon seeing that he survived, she literally begged him to kill her for the sake of the whole world, and he always denied but she begged him again and again, until finally, with tears in his eyes, he killed her.
And right after that, her dark world was created. And for the rest of her life, she lived in it as a scientist she always wanted to be, and she managed to control her illness even better, so much that it didn't hurted anymore and she could use her new power more properly. And soon, she met Evelyn, Nicolas and Annie and became friends with them as they accepted her for who she is and even were fascinated with her powers, and she, Evelyn and Nicolas developed a crush on each other and basically became a polycule. And right now, she is a scientist that is now researching and experimenting on the battery acid, wanting to know what is it what makes everyone who is thrown into it change so much, and if it can be used for good things, like healing. She's still deeply connected to Evelyn, Nicolas and Annie, since they're still friends with each other and she even got married with Evelyn and Nicolas, which deepens their bond even more. Her role in the Puppet Mafia is that she's also their ally that supplies them with medicine, poisons and also treats them if someone is sick or has very deep bruises or broken limbs.
