Bleach (by Tite Kubo)

You may not have heard of it unless you know Manga, but Bleach is a very big series, both in length and fame. It's by a guy called Tite Kubo, and recently, I started reading it - I'm up to book 9 of the comics now, and episode 21 of the anime series.

Basically, it's about this Japanese teenager, Ichigo Kurosaki, who is picked on for his natural ginger hair. He doesn't really care though. One night, a girl dressed as a samurai appears in his room, followed shortly by a monster. The monster beats the crap out of the girl, who infuses her powers into Ichigo so he can save his family. When the monster is gone, the girl introduces herself as Rukia Kuchiki, a Soul Reaper from the Soul Society. Her job is to cleanse souls and send them to the Soul Society. Unfortunately, some souls turn into evil Hollows which kill others and eat their souls. Rukia has become stuck on Earth because she accidentally gave all of her powers to Ichigo, who is now forced into becoming a Soul Reaper. That's what happens in the first book!!

Here's the link to the theme song: Bleach song