So has anyone else here read Angel Sanctuary?

For those of you who don't know Angel Sanctuary, it has very mature (and Taboo) themes to it. Setsuna Mudo is a problematic delinquent high school student, who is in love with his sister. To add to his problems, he is also a reincarnation of a fallen angel, which gets him caught in a messy war between heaven and hell.

The story has a lot of twists and turns and is very touching. If you have an interest in gothic stories then Kaori Yuki is the best around at them.