Note: This is a review of the Funimation English dub of this series.

Violence / Gore:
Sasami is a series that relies mostly on comedic violence, and fighting with magic. There are a few instances, however, that are a little more serious when it comes to fighting. I don't remember there being much blood being spilled.

Nudity / Sexual Content:
One character (female) constantly dotes on and acts infatuated with another character (also female). The feelings are one-sided.
One character attempts to peek up girl's skirts with a mirror.
There are a few random bathroom moments and quick conversation inserts, but nothing majorly scandalous as far as sexual content.

Potentially problematic theological themes:
Sasami and her friends wield magic powers. They fight with them and use them in everyday life. Other characters have powers as well. Some use their powers for good, some for evil.

Other potentially problematic themes:
A few minor swears.

* Sasami starts out as a series about regular school students who discover that they have magical powers, and follows their daily lives and random struggles. The second half of the series goes a bit deeper and has an overriding plot. It also has a darker tone, as one of the characters goes through a downward emotional spiral. I personally found the beginning of the series a bit lackluster, but I found that the later episodes were a bit more enjoyable. I would recommend this series for fans of Sailor Moon, though it isn't quite up to par (in my opinion).