http://www.esrb.org/ratings/synopsis.jsp?Certificate=31575
The interesting part is this:
As the game progresses, the dialogue and on-screen text contains references to sixual material (e.g., “. . . all the [censored]s your heart, or any other organ, desires,” “She . . . [censored] the men as cruelly as Bal had ravished her,” and “Remember when you thought [he] was . . . intent on making you . . . into his personal six slave?”).
... that's... unexpected.
Oh and there will be drinking contests too.