Bleach

Bleach follows the lives of Ichigo Kurosaki, who is a high school student with the ability to see ghosts, and a shinigami (Soul Reaper or, literally, "death god") named Rukia Kuchiki, who crosses paths with Ichigo while hunting an evil spirit known as a hollow. Rukia is wounded during the ensuing confrontation with the spirit and is left with no choice but to transfer her powers into Ichigo. Thus the adventures of Ichigo and Rukia begin.