A brief description of the BLEACH manga:
Ichigo Kurosaki, a 15-year-old student, has been able to see spirits since childhood. One day Sinigami Rukiya meets him hunting for an empty, evil spirit. She is seriously injured during the battle and has to hand over her powers to Ichigo. Until Rukiya regains her strength, Ichigo must now do his daily work in Sinigami. So Ichigo learns more and more, and both become friends.