Konichiwa!!! O-genki desu ka? Watashi no namae wa -RukiaKuchiki- desu.

Rukia is a Soul Reaper in the 13th Division under Jūshirō Ukitake. Shortly after meeting the main protagonist of the series, Ichigo Kurosaki, who can see supernatural phenomena such as Soul Reapers and spirits, she is forced to give him her powers in order to fulfill her duties as a Soul Reaper. Rukia's relationship with Ichigo is unique, for despite the relatively short amount of time they have known each other, Ichigo can easily confide in her and considers her a true friend because she is encouraging and understands what he is feeling. ( Wikipedia )