Nah the thing doesn't have a lot of blood. At least not all the time. As for sex, it's nothing graphic. There are no nudity. Saikano just hints at it. I think that a lot of parents might object to young people watching this anime because of the above facts. However, it is an extremely good anime. So good that I rate it as the best anime of all time. Most other people I know rate it as at least the best of 2003. I like it so much that my new aol screen name is part of the title.