Naked Ambition 3D is a sex comedy set in Tokyo, Japan. The film follows a porn actor who dreams of becoming a mainstream movie star. He goes through various hilarious and embarrassing situations as he tries to navigate the world of adult filmmaking and break into the mainstream industry.

John and Andy, comic section editors of a magazine, become unemployed because of the winding-up of the publisher. Together with three other colleagues, they publish their own porn magazine, which turns out to be very well-received in the market. Their sexual fantasies are realized, and on the other hand, they become the tycoons in the porn circle. Yet, with a change in their moral values and a seducing environment surrounding them, challenges await their love...