In general, Freezing manga doesn't have nudity. It focuses more on the action and story rather than such explicit content. The creators aim to maintain a certain level of propriety in their work.
It could be seen that there were a few movies called " Frozen Hope: Reborn in the Day ", but these movies were all documentaries or comprehensive films from Thailand. They had nothing to do with the issue of " Frozen movies are not allowed to be watched." Therefore, based on the information provided, I am unable to answer this question.
Naruto himself is obviously a main character as it's in the Naruto universe. Sakura might also be a prominent character. She could be involved in the story either as Naruto's friend or love interest. Sasuke is another likely candidate. His cool and brooding nature could contrast well with Naruto's more exuberant personality in the context of the freezing lemon - themed story.