This story is based on the fact that Lina is the Dark Lords daughter and what she feels at killing one of her family members.
She hadn't wanted to kill her brother. But she had. He, out of control, had to be stopped. Her family was all for killing the human race of course, but you did not give them an idea to stay alive forever. That was bad. So when he started doing his experiments, she knew what she had to do.
She was just surprised that the others had not commented about the similarities between them. Her and Halcyform. Their eyes were the same color, their hair grew out the same way on top, and their faces looked alike except that her cheekbones stood out more for some reason. But that was all so she guessed that it was ok that they did not comment on it.
Her poor big brother, he had found love and then lost it just so quick that it was stunning. And that traitorous monster egging him on just helped him on his way to insanity. She did not know whether or not to send a prayer for him to the Gods or not, or it would even work for her. Did he and his warped mind need to go to a nice place?
And poor Rubia. Her spirit had been chained to the land, damned to watch as the one person she had put all of her faith in grow more and more unlike the person she had been with and loved. No wonder when she finally got her body to move she wanted to die. She had gotten her wish and her brother had died just as she had been told he would. Her parents approved of her actions. He was going about it all the wrong way, they said. But to her it did not matter. He was dead and she felt the pain. And she couldn't even show it with the humans she was traveling with.
The pain was horrible but she had to deal with it. Didn't she always?