Shadows did not scare her. She was programmed to be fearless. She did not smile. She was programmed to be emotionless. She was always silent. She was made to observe, and once her mission was finished, it was game over. And as if a ebon-like cloud had decided to descend itself upon her, she began to have thoughts of her own. She didn't want to be a pawn. She didn't want to play things fairly. And for once, Yuki Nagato began to express emotions.
If the world was changed, she could fit in. If the world was changed, she didn't have to be terminated. If the world was changed...she could be normal. And as if a sudden epiphany had crossed her mind, she changed to world much to her and his benefit. And he...he rejected it. Why? Wasn't everything the way he wanted it? Wasn't she good enough for him? What went wrong? She gave him everything he wanted, yet...why was he still unsatisfactory? And as quickly that ebon cloud had descended, it dissipated. Allowing her to see the flaws.
The world wasn't perfect. The world, as perfect as she could make it, was still imperfect. There were flaws. There were errors. And like the world currently, she was one. A flaw. A piece of misinformation. Why did she malfunction like this? What was the cause? Where had this originated from? She was still confused. What was the meaning behind this? And if there was one...was it in anyway a better definition than what she could think of?
The darker meanings have to be uncovered, not discovered. And that is what Yuki Nagato realized.