Luna is back on Equestria. With Nightmare Moon defeated, she just wants to continue her life on. However, they say that for one's life to be complete, you must have a love.
"What is love?" She asks herself.
In a routine night watch over, she finds a human. A very hurt human in the verge of Death.
Humans are prohibited and she knows what to do: She has to kill him.
How will Equestria take the fact that she doesn't kill him, but for both of them to enter in something entirely different to a true friendship?
Image borrowed from Devianart. (http://www.deviantart.com/art/Princess-Luna-264629770)