First of all, in the Tenjou Tenge there is no real "nudity." However there are many "adult themes" in the anime persay. If you feel uncomfortable with big-breasted women fighting, then this anime is not for you. Second of all, Anime-Station&Aoi-Anime are still subbing the anime (I have up to episode 8). There is no clear sign of the anime being licensed, but there are vague signs of it saying that it is licensed in the credits. Despite that, you can get the epsiodes from here. In my opinion, it is a very good anime with great fight scenes. Hope I could help.