Shuna:

"The reason humans refuse to cooperate is that they refuse to see the world in colors, they only see it in black and white, but there are layers to everything. Layers being reasons, reasons being actions, actions having reasons, reasons can be both good and bad or good or bad. 

I won't blame you for killing your own mother for it is for the safety of all the people that we have ever interacted with, but what you did, it's still wrong. Still, I won't blame you or taunt you, even if that is what an ordinary person would do." 

Yoan:

"Why . . . Why not?"

Shuna/Elena:

"Because there are layers to everything, because the world is colorful."